The Lord taketh pleasure in them that fear him - In those who truly worship him, however humble, poor, and unknown to people they may be; however unostentatious, retired, unnoticed may be their worship. Not in the "pride, pomp, and circumstance of war" is his pleasure; not in the march of armies; not in the valor of the battlefield; not in scenes where "the garments of the warrior are rolled in blood," but in the closet, when the devout child of God prays; in the family, when the group bend before Him in solemn devotion; in the assembly - quiet, serious, calm - when his friends are gathered together for prayer and praise; in the heart that truly loves, reverences, adores Him.
In those that hope in his mercy - It is a pleasure to him to have the guilty, the feeble, the undeserving hope in Him - trust in Him - seek Him.

The Lord taketh pleasure in them that fear him - That are truly religious.
In those that hope is his mercy - Who are just beginning to seek the salvation of their souls. Even the cry of the penitent is pleasing in the ear of the Lord. With this verse the hundred and forty-sixth Psalm ends in all the Versions, except the Chaldee. And the hundred and forty-seventh commences with the Psalm 147:12. I believe these to be two distinct Psalm. The subjects of them are not exactly the same, though something similar; and they plainly refer to different periods.

The Lord taketh pleasure in them that fear him,.... With a filial and godly fear; that serve and worship him, privately and publicly, with reverence and love: as, appears by the goodness he lays up for them; the good things he communicates to them; the discoveries of his love, covenant, and grace, they have from him; the guard he sets about them; his eye of providence and grace over them; and his heart full of love, pity, and compassion to them; see Psalm 33:18;
in those that hope in his mercy; not general, but special; not in the absolute mercy of God, but as displayed in Christ; and great encouragement there is to hope in it, from the plenty of it in his heart, from the instances of it among men, and from the blessings of grace and salvation that spring from it: and in such the Lord takes pleasure; hope is his own grace, and mercy is his delight; and he is pleased with those that exercise hope upon it: not that the graces of fear and hope, and the exercise of them, are the cause and motives of God's delight in his people, which, as they were considered in Christ, was before the world was, or those graces were in them; but these describe and point out the persons who are openly and manifestly the objects of his delight and pleasure. Plutarch (r), an, Heathen writer, seems to have been acquainted with this and Psalm 147:10, and to refer to them, when he says,
"it is somewhere said, that God is not a lover of horses, nor of birds, but of men, and desires to dwell with those that are eminently good; nor does he refuse nor despise the familiar converse of a man divine and wise.''
(r) In Vita Numae, vol. 1. p. 62.