Commentaries
5:7-12 David prayed often alone, yet was very constant in attendance on public worship. The mercy of God should ever be the foundation both of our hope and of our joy, in every thing wherein we have to do with him. Let us learn to pray, not for ourselves only, but for others; grace be with all that love Christ in sincerity. The Divine blessing comes down upon us through Jesus Christ, the righteous or just One, as of old it did upon Israel through David, whom God protected, and placed upon the throne. Thou, O Christ, art the righteous Saviour, thou art the King of Israel, thou art the Fountain of blessing to all believers; thy favour is the defence and protection of thy church.
9. The wicked are not reliable because by nature they are full of wickedness, or literally, "wickednesses," of every kind (Ro 8:7).
sepulchre—a dwelling-place of corruption, emitting moral putridness.
flatter—or, "make smooth."
their tongue—speaks deceitfully.