My soul shall be satisfied - See the notes at Psalm 36:8. The idea is, that his soul now longed for the service of God as one who is hungry longs for food, or as one who is thirsty longs for drink; and that the time would come when this longing desire would be satisfied. He would engage in the service of God as he desired to do; he would be permitted to enjoy that service without interruption.

As with marrow and fatness - See the notes at Psalm 36:8. The words here employed denote rich food; and the comparison is between the pleasure of serving God, and the satisfaction derived from food when one is hungry. It is not uncommon to compare the pleasures of religion with a feast or banquet. Compare Isaiah 25:6.

And my mouth shall praise thee with joyful lips - Lips full of joy; or, which give utterance to the joy of the heart.

My soul shall be satisfied - I shall have, in the true worshipping of thee, as complete a sensation of spiritual sufficiency and happiness, so that no desire shall be left unsatisfied, as any man can have who enjoys health of body, and a fullness of all the necessaries, conveniences, and comforts of life.

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 Psalm 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 Isaiah 5:12.

My soul shall be satisfied as with {d} marrow and fatness; and my mouth shall praise thee with joyful lips:

(d) The remembrance of your favour is more sweet to me than all the pleasures and dainties of the world.

63:5 Satisfied - When thou shalt fulfil my earnest desire of enjoying thee in the sanctuary.

marrow: Heb. fatness

5-8. Full spiritual blessings satisfy his desires, and acts of praise fill his thoughts and time.

63:3-6 Even in affliction we need not want matter for praise. When this is the regular frame of a believer's mind, he values the loving-kindness of God more than life. God's loving-kindness is our spiritual life, and that is better than temporal life. We must praise God with joyful lips; we must address ourselves to the duties of religion with cheerfulness, and speak forth the praises of God from a principle of holy joy. Praising lips must be joyful lips. David was in continual danger; care and fear held his eyes waking, and gave him wearisome nights; but he comforted himself with thoughts of God. The mercies of God, when called to mind in the night watches, support the soul, making darkness cheerful. How happy will be that last morning, when the believer, awaking up after the Divine likeness, shall be satisfied with all the fulness of God, and praise him with joyful lips, where there is no night, and where sorrow and sighing flee away!