With my voice have I cried unto the Lord. He here informs us that he had never been so broken by adversity, or cast down by impious scornings, as to be prevented from addressing his prayers to God And it was an infallible proof of his faith to exercise it by praying even in the midst of his distresses. Nothing is more unbecoming than sullenly to gnaw the bit with which we are bridled, and to withhold our groaning from God, if, indeed we have any faith in his promise. Nor is there a redundancy of expression in these words, I have cried with my voice David distinctly mentions his voice, the better to express that how much soever the ungodly might rage against him, he was by no means struck dumb, but pronounced, in a loud and distinct voice, the name of his God; and to do this was a difficult matter under so grievous and severe a temptation. He also particularly mentions his voice, in order to show that he opposes the voice of prayer to the tumultuous outcries of those who either blame fortune or curse God, or give way to excessive complainings; those in short, who with passionate confusion pour forth their immoderate sorrow. But David's meaning appears to me to be principally this, that amidst the blasphemies of his enemies by which they endeavored to overwhelm his faith, he was not put to silence, but rather lifted up his voice to God, whom the ungodly imagined to have become his enemy. He adds that he cried not in vain, to encourage all the godly to the like constancy. As to the expression, from the hill of his holiness or, which signifies the same things from his holy hill, it is improperly explained of heaven, as has been done by some. Heaven, I indeed confess, is often called, in other places, God's holy palace; but here David has doubtless a reference to the ark of the covenant, which at that time stood on Mount Sion. And he expressly affirms that he was heard from thence, though he had been compelled to flee into the wilderness. The Sacred History relates, (2 Samuel 15:24,) that when Abiathar the priest commanded the ark to be carried by the Levites, David would not suffer it. And in this the wonderful faith of the holy man appears conspicuous. He knew that the Lord had chosen Sion to be the dwelling place of the ark, but he was, notwithstanding, willing rather to be torn from that sacred symbol of the divine presence, (which was painful to him as if his own bowels had been torn from him,) than make any innovation not sanctioned by the will of heaven. Now, he boasts, that although he was deprived of the sight of the ark, and notwithstanding the distance to which he was removed from it, God was near him to listen to his prayers. By these words he intimates that he kept a due medium, inasmuch as he neither despised the visible sign, which the Lord had appointed on account of the rudeness of the times, nor by attaching a superstitious importance to a particular place, entertained carnal conceptions of the glory of God. Thus, he did not idly scatter words which would vanish into air, as unbelievers are wont to do, who pray also but are in doubt to what place they ought to direct their speech. David turned himself directly towards the tabernacle, whence God had promised to be merciful to his servants. Hence the confidence with which he prayed; and this confidence was not without success. In our day, since there is fulfilled in Christ what was formerly shadowed forth by the figures of the law, a much easier way of approach to God is opened up for us, provided we do not knowingly and willingly wander from the way.

I cried unto the Lord - That is, in these troubles, as he had always done in affliction. The form of the verb here is future - "I will cry" or call unto the Lord; probably, however, designed to state a general habit with him, that when troubles came he always called on the Lord. He speaks now of himself as if in the midst of the trouble; gives utterance to the feeling which he has always had in his sorrows; and says, "I will call upon the Lord," thus declaring his purpose to make his appeal confidently to him. Thus, the language is not so much retrospective as it is indicative of the uniform state of his mind in the midst of afflictions.
With my voice - Not merely mentally, but he gave utterance to the deep anguish of his soul in words. So the Saviour did in the garden of Gethsemane Matthew 26:39; and so, perhaps, most persons do in deep affliction. It is natural then to cry out for help; and besides the fact that we may hope that any prayer then, though mental only, would bring relief by being answered, there is a measure of relief found by the very act of giving utterance or vent to the deep and, as it were, pent-up feelings of the soul. In calmer times we are satisfied with unuttered aspirations, with gentle ejaculations, with sweet mental communion with God; in overwhelming trials we give utterance to our feelings in the earnest language of pleading.
And he heard me - Or, "then he hears me;" that is, when I call. The psalmist refers to what he had constantly found to be true, that God was a hearer of prayer.
Out of his holy hill - Zion. See the notes at Psalm 2:6. That was the place to which David had removed the ark, and which was regarded, therefore, as the special dwelling-place of the Most High. To him, as dwelling in Zion, prayer was accustomed to be offered, and there he was accustomed to answer prayer. To this fact David here refers as one that had been illustrated in his former days. To that God who had thus answered him he felt that he might confidently appeal now.
Selah - Indicating another strophe or musical pause. See the notes at Psalm 3:2.

I cried unto the Lord with my voice - He was exposed to much danger, and therefore he had need of fervor.
He heard me - Notwithstanding my enemies said, and my friends feared, that there was no help for me in my God; yet he heard me out of his holy hill. Selah: mark this, and take encouragement from it. God never forsakes those who trust in him. He never shuts out the prayer of the distressed.

I cried unto the Lord with my voice,.... The experience which the psalmist had of being heard in prayer, was what gave great encouragement to his faith, as to his interest in God and salvation by him, when his enemies were so increased about him; for crying here is to be understood of prayer, as it is often used in this book of Psalm: and so the Targum renders it, "I prayed"; and this designs vocal prayer. Sometimes there is a crying in prayer and no voice heard, as it is said of Moses, Exodus 14:15; and was the case of Hannah, 1-Samuel 1:13; but this was with a voice, and a loud one, as in Psalm 55:17; denoting ardour, fervency, and importunity; and such prayer avails much with God. The object addressed in prayer is the Lord, the God of his life, and who was able to save him, and supply all his wants;
and he heard me out of his holy hill; either out of the church, the holy hill of Zion, Psalm 2:6; where David prayed and God granted his presence, and gave an answer to his prayers; or out from the mercy seat and ark, which was a type of the propitiatory, Christ, and which David had brought to his own city, the hill of Zion; or from heaven, the habitation of God's holiness: David was a man of prayer, and he was often heard and answered by God. And this also is true of Christ, he offered up prayers and supplications with strong crying and tears to God Hebrews 5:7, that was able to save him; and he was heard by him, yea, the Father always heard him: and God is a God hearing and answering the prayers of his people, sooner or later: sometimes before, sometimes at, and sometimes after their crying to him.
Selah; on this word; see Gill on Psalm 3:2.

Care and grief do us good, when they engage us to pray to God, as in earnest. David had always found God ready to answer his prayers. Nothing can fix a gulf between the communications of God's grace towards us, and the working of his grace in us; between his favour and our faith. He had always been very safe under the Divine protection. This is applicable to the common mercies of every night, for which we ought to give thanks every morning. Many lie down, and cannot sleep, through pain of body, or anguish of mind, or the continual alarms of fear in the night. But it seems here rather to be meant of the calmness of David's spirit, in the midst of his dangers. The Lord, by his grace and the consolations of his Spirit, made him easy. It is a great mercy, when we are in trouble, to have our minds stayed upon God. Behold the Son of David composing himself to his rest upon the cross, that bed of sorrows; commending his Spirit into the Father's hands in full confidence of a joyful resurrection. Behold this, O Christian: let faith teach thee how to sleep, and how to die; while it assures thee that as sleep is a short death, so death is only a longer sleep; the same God watches over thee, in thy bed and in thy grave. David's faith became triumphant. He began the psalm with complaints of the strength and malice of his enemies; but concludes with rejoicing in the power and grace of his God, and now sees more with him than against him. Salvation belongeth unto the Lord; he has power to save, be the danger ever so great. All that have the Lord for their God, are sure of salvation; for he who is their God, is the God of Salvation.

cried . . . heard--Such has been my experience. The latter verb denotes a gracious hearing or answering.
out of--or, "from."
his holy hill--Zion (Psalm 2:6). His visible earthly residence.

His hill - Out of heaven, so called, Psalm 15:1.