Reuben, thou art my firstborn, my might, and the beginning of my strength, the excellency of dignity, and the excellency of power:

Reuben, thou art my first-born, my might, and the beginning of my strength; The pre-eminence of dignity, and the pre-eminence of power.

Ruben, my firstborn, thou art my strength, and the beginning of my sorrow: excelling in gifts, greater in command.

Reuben, thou art my firstborn, My might, and the firstfruits of my vigour: Excellency of dignity, and excellency of strength.

Reuben, thou art my first-born, my might, and the beginning of my strength, the excellence of dignity, and the excellence of power:

Reuben! my first-born thou, My power, and beginning of my strength, The abundance of exaltation, And the abundance of strength;

Reuben, you are my oldest son, the first-fruit of my strength, first in pride and first in power:

Reuben, thou art my first-born, My might, and the first-fruits of my strength; The excellency of dignity, and the excellency of power.

Reuben, my firstborn, you are my strength and the beginning of my sorrow: first in gifts, greater in authority.

Ruben primogenitus meus, tu fortitudo mea, et principium roboris mei: excellentia dignitatis et excellentia roboris.

Reuben, thou art my first-born He begins with the first-born, not for the sake of honor, to confirm him in his rank; but that he may the more completely cover him with shame, and humble him by just reproaches. For Reuben is here cast down from his primogeniture; because he had polluted his father's bed by incestuous intercourse with his mother-in-law. The meaning of his words is this: Thou, indeed, by nature the first-born, oughtest to have excelled, seeing thou art my strength, and the beginning of my manly vigor; but since thou best flowed away like water, there is no more any ground for arrogating anything to thyself. For, from the day of thy incest, that dignity which thou receivedst on thy birth-day, from thy mother's womb, is gone and vanished away. The noun ('vn,) some translate seed, others grief; and turn the passage thus: "Thou my strength, and the beginning of my grief or seed." They who prefer the word grief, assign as a reason, that children bring care and anxiety to their parents. But if this were the true meaning, there would rather have been an antithesis between strength and sorrow. Since, however, Jacob is reciting, in continuity, the declaration of the dignity which belongs to the first-born, I doubt not that he here mentions the beginning of his manhood. For as men, in a certain sense, live again in their children, the first-born is properly called the "beginning of strength." To the same point belongs what immediately follows, that he had been the excellency of dignity and of strength, until he had deservedly deprived himself of both. For Jacob places before the eyes of his son Reuben his former honor, because it was for his profit to be made thoroughly conscious whence he had fallen. So Paul says, that he set before the Corinthians the sins by which they were defiled, in order to make them ashamed. (1-Corinthians 6:5.) For whereas we are disposed to flatter ourselves in our vices, scarcely any one of us is brought back to a sane mind, after he has fallen, unless he is touched with a sense of his vileness. Moreover, nothing is better adapted to wound us, than when a comparison is made between those favors which God bestows upon us, and the punishments we bring upon ourselves by our own fault. After Adam had been stripped of all good things, God reproaches him sharply, and not without ridicule, "Behold Adam is as one of us." What end is this designed to answer, except that Adam, reflecting with himself how far he is changed from that man, who had lately been created according to the image of God, and had been endowed with so many excellent gifts, might be confounded and fall prostrate, deploring his present misery? We see, then, that reproofs are necessary for us, in order that we may be touched to the quick by the anger of the Lord. For so it happens, not only that we become displeased with the sins of which we are now bearing the punishment, but also, that we take greater care diligently to guard those gifts of God which dwell within us, lest they perish through our negligence. They who refer the "excellency of dignity" to the priesthood, and the "excellency of power" to the kingly office, are, in my judgment, too subtle interpreters. I take the more simple meaning of the passage to be; that if Reuben had stood firmly in his own rank, the chief place of all excellency would have belonged to him.

Reuben as the first-born had a right to a double portion of all that the father had; see Deuteronomy 21:17
The eminence or dignity mentioned here may refer to the priesthood; the power, to the regal government or kingdom - In this sense it has been understood by all the ancient Targumists. The Targum of Onkelos paraphrases it thus: "Thou shouldst have received three portions, the birthright, the priesthood, and the kingdom:" and to this the Targums of Jonathan ben Uzziel and Jerusalem add: "But because thou hast sinned, the birthright is given to Joseph, the kingdom to Judah, and the priesthood to Levi." That the birthright was given to the sons of Joseph we have the fullest proof from 1-Chronicles 5:1.

Reuben, thou [art] my firstborn, my (b) might, and the beginning of my strength, (c) the excellency of dignity, and the excellency of power:
(b) Begotten in my youth.
(c) If you have not left your birthright by your offence.

Reuben, thou art my firstborn,.... Jacob addressed himself to Reuben first, in the presence of his brethren, owned him as his firstborn, as he was, Genesis 29:31 did not cashier him from his family, nor disinherit him, though he had greatly disobliged him, for which the birthright, and the privileges of it, were taken from him, 1-Chronicles 5:1.
my might, and the beginning of my strength; begotten by him when in his full strength (z), as well as the first of his family, in which his strength and glory lay; so the Septuagint, "the beginning of my children"; and because he was so, of right the double portion belonged to him, had he not forfeited it, Deuteronomy 21:17. Some versions render the words, "the beginning of my grief", or "sorrow" (a), the word "Oni" sometimes so signifying, as Rachel called her youngest son "Benoni", the son of my sorrow; but this is not true of Reuben, he was not the beginning of Jacob's sorrow, for the ravishing of Dinah, and the slaughter and spoil of the Shechemites, by his sons, which gave him great sorrow and grief, were before the affair of Reuben's lying with Bilhah:
the excellency of dignity, and the excellency of power; that is, to him of right belonged excellent dignity, power, and authority in the family, a preeminence over his brethren, a double portion of goods, succession in government, and, as is commonly understood, the exercise of the priesthood; and so the Targums interpret it, that he should, had he not sinned, took three parts or portions above his brethren, the birthright, priesthood, and kingdom. Jacob observes this to him, that he might know what he had lost by sinning, and from what excellency and dignity, grandeur and power, he was fallen.
(z) "Nate. meae vires. --------" Virgil. (a) , Aquila; , Symmachus apud Drusium; "principium doloris mei", V. L. Tigurine version.

Reuben was the first-born; but by gross sin, he forfeited the birthright. The character of Reuben is, that he was unstable as water. Men do not thrive, because they do not fix. Reuben's sin left a lasting infamy upon his family. Let us never do evil, then we need not fear being told of it. Simeon and Levi were passionate and revengeful. The murder of the Shechemites is a proof of this. Jacob protested against that barbarous act. Our soul is our honour; by its powers we are distinguished from, and raised above, the beasts that perish. We ought, from our hearts, to abhor all bloody and mischievous men. Cursed be their anger. Jacob does not curse their persons, but their lusts. I will divide them. The sentence as it respects Levi was turned into a blessing. This tribe performed an acceptable service in their zeal against the worshippers of the golden calf, Exodus 32. Being set apart to God as priests, they were in that character scattered through the nation of Israel.

Reuben, my first-born thou, my might and first-fruit of my strength; pre-eminence in dignity and pre-eminence in power. - As the first-born, the first sprout of the full virile power of Jacob, Reuben, according to natural right, was entitled to the first rank among his brethren, the leadership of the tribes, and a double share of the inheritance (Genesis 27:29; Deuteronomy 21:17). (שׂאת: elevation, the dignity of the chieftainship; עז, the earlier mode of pronouncing עז, the authority of the first-born.) But Reuben had forfeited this prerogative. "Effervescence like water - thou shalt have no preference; for thou didst ascend thy father's marriage-bed: then hast thou desecrated; my couch has he ascended." פּחז: lit., the boiling over of water, figuratively, the excitement of lust; hence the verb is used in Judges 9:4; Zephaniah 3:4, for frivolity and insolent pride. With this predicate Jacob describes the moral character of Reuben; and the noun is stronger than the verb פחזת of the Samaritan, and אתרעת or ארתעת efferbuisti, aestuasti of the Sam. Vers., ἐξύβρισας of the lxx, and ὑπερζέσας of Symm. תּותר is to be explained by יתר: have no pre-eminence. His crime was, lying with Bilhah, his father's concubine (Genesis 35:22). חלּלתּ is used absolutely: desecrated hast thou, sc., what should have been sacred to thee (cf. Leviticus 18:8). From this wickedness the injured father turns away with indignation, and passes to the third person as he repeats the words, "my couch he has ascended." By the withdrawal of the rank belonging to the first-born, Reuben lost the leadership in Israel; so that his tribe attained to no position of influence in the nation (compare the blessing of Moses in Deuteronomy 33:6). The leadership was transferred to Judah, the double portion to Joseph (1-Chronicles 5:1-2), by which, so far as the inheritance was concerned, the first-born of the beloved Rachel took the place of the first-born of the slighted Leah; not, however, according to the subjective will of the father, which is condemned in Deuteronomy 21:15., but according to the leading of God, by which Joseph had been raised above his brethren, but without the chieftainship being accorded to him.

Reuben thou art my first - born - Jacob here puts upon him the ornaments of the birth - right, that he and all his brethren might see what he had forfeited and in that might see the evil of his sin. As the first - born he was his father's joy, being the beginning of his strength. To him belonged the excellency of dignity above his brethren, and some power over them.