Thus will I bless thee all my life long: and in thy name I will lift up my hands.

“"So I will speak good of You in my life, and in Your name I will lift up my hands" [Psalm 63:5]. Now in my life which to me You have given, not in that which I have chosen after the world with the rest among many lives, but that which You have given to me through Your mercy, that I should praise You. "So I will speak good of You in my life." What is "so"? That to Your mercy I may ascribe my life wherein You I praise, not to my merits. "And in Your name I will lift up my hands." Lift up therefore hands in prayer. Our Lord has lifted up for us His hands on the Cross, and stretched out were His hands for us, and therefore were His hands stretched out on the Cross, in order that our hands might be stretched out unto good works: because His Cross has brought us mercy. Behold, He has lifted up hands, and has offered for us Himself a Sacrifice to God, and through that Sacrifice have been effaced all our sins. Let us also lift up our hands to God in prayer: and our hands being lifted up to God shall not be confounded, if they be exercised in good works. For what does he that lifts up hands? Whence has it been commanded that with hands lifted up we should pray to God? For the Apostle says, "Lifting up pure hands without anger and dissension." [1 Timothy 2:8] It is in order that when you lift up hands to God, there may come into your mind your works. For whereas those hands are lifted up that you may obtain that which you will, those same hands you think in good works to exercise, that they may not blush to be lifted up to God. "In your name I will lift up my hands." Those are our prayers in this Idumæa, in this desert, in the land without water and without way, where for us Christ is the Way, [John 14:6] but not the way of this earth.”

“My soul shall be satisfied as with marrow and fatness,.... When he should return to the house of the Lord, and partake of the provisions of it, called the fatness of his house; see Gill on Psa 36:8. The phrase denotes the abundance of spiritual refreshment and delight in the word and ordinances, and the great satisfaction had in them; and may have some regard to benefits arising from prayer, as well as other ordinances. Fat was not to be eaten under the legal dispensation, and therefore not to be literally taken; but in the typical and spiritual sense which David understood, and therefore respects that, or otherwise he would speak contrary to the law of God: he refers to those spiritual good things which they typified, and give spiritual pleasure and satisfaction; and my mouth shall praise thee with joyful lips; such a full meal, such a rich entertainment, calls for abundant thankfulness; which is here signified by the mouth praising the Lord, and doing this with lips of shouting, expressions of joy, songs of praise, jubilee songs. The allusion is to the use of music and singing at festivals; see Isa 5:12.”