For so an entrance - In this manner you shall be admitted into the kingdom of God.
Shall be ministered unto you - The same Greek word is here used which occurs in 2-Peter 1:5, and which is there rendered "add." See the notes at that verse. There was not improbably in the mind of the apostle a recollection of that word; and the sense may be, that "if they would lead on the virtues and graces referred to in their beautiful order, those graces would attend them in a radiant train to the mansions of immortal glory and blessedness." See Doddridge in loc.
Abundantly - Greek, "richly." That is, the most ample entrance would be furnished; there would be no doubt about their admission there. The gates of glory would be thrown wide open, and they, adorned with all the bright train of graces, would be admitted there.
Into the everlasting kingdom - Heaven. It is here called "everlasting," not because the Lord Jesus shall preside over it as the Mediator (compare the notes at 1-Corinthians 15:24), but because, in the form which shall be established when "he shall have given it up to the Father," it will endure forever, The empire of God which the Redeemer shall set up over the souls of his people shall endure to all eternity. The object of the plan of redemption was to secure their allegiance to God, and that will never terminate.

For so an entrance shall be ministered - If ye give diligence; and do not fall, an abundant, free, honorable, and triumphant entrance shall be ministered to you into the everlasting kingdom. There seems to be here an allusion to the triumphs granted by the Romans to their generals who had distinguished themselves by putting an end to a war, or doing some signal military service to the state. (See the whole account of this military pageant in the note on 2-Corinthians 2:14.) "Ye shall have a triumph, in consequence of having conquered your foes, and led captivity captive." Instead of everlasting kingdom, αιωνιον βασιλειαν, two MSS. have επουρανιον, heavenly kingdom; and several MSS. omit the word και Σωτηρος, and Savior.

For so an entrance shall be ministered unto you abundantly,.... An abundant supply of grace and strength shall be freely afforded, to carry you through all the duties and trials of life; and when that shall be ended, an admission will be granted
into the everlasting kingdom of our Lord and Saviour Jesus Christ; meaning, not the Gospel dispensation, or the spiritual kingdom of Christ, which is not of this world, but lies among his people, who are called out of it, in whom he reigns by his Spirit and, grace, according to laws of his own enacting; nor his personal kingdom on earth with his saints, which will last only a thousand years, and not be for ever; but the kingdom of heaven, or the ultimate glory, which will be everlasting; and is called a kingdom, to denote the glory and excellency of that state; and an everlasting one, because it will never end; and the kingdom of Christ, because it is in his possession, for his people; it is prepared by him, and he will introduce them into it, when they shall be for ever with him, and reign with him for ever and ever. Some copies read, "the heavenly kingdom". There is an entrance of separate souls into this kingdom at death; and which may be said to be ministered "abundantly" to them, or "richly" as the word signifies, when they depart out of this world with joy and comfort; triumphing over death, and the grave, in a full view by faith of their interest in the love of God, the grace of Christ, and the glories of another world; and there is an entrance into it at judgment, and which will be abundantly, when all the saints together, in their souls and bodies, shall be introduced by Christ into the full joy of their Lord. As the saints enter the kingdom through many tribulations, the gate is strait, and the way is narrow, and they are scarcely saved, and many of them so as only by fire; but when the abundant grace given unto them by the way to heaven, the great consolation many enjoy in their last moments, and especially the free and full admission of them, both at death and at judgment, to eternal happiness, are considered, the entrance ministered may be said to be abundantly; or, as the Arabic version renders it, "with a breadth"; the entrance is large and broad.

an entrance--rather as Greek, "the entrance" which ye look for.
ministered--the same verb as in 2-Peter 1:5. Minister in your faith virtue and the other graces, so shall there be ministered to you the entrance into that heaven where these graces shine most brightly. The reward of grace hereafter shall correspond to the work of grace here.
abundantly--Greek, "richly." It answers to "abound," 2-Peter 1:8. If these graces abound in you, you shall have your entrance into heaven not merely "scarcely" (as he had said, 1-Peter 4:18), nor "so as by fire," like one escaping with life after having lost all his goods, but in triumph without "stumbling and falling."

For if ye do so, an entrance shall be ministered to you abundantly into the everlasting kingdom - Ye shall go in full triumph to glory.