Psalms 56:10

“For thy mercy [is] great unto the heavens, etc.] Which denotes the exceeding greatness and largeness of it; as it is in the heart of God, who is plenteous in mercy; as it is expressed in the covenant of grace, where are stores of it; as it is shown forth in the choice of persons to eternal life; in the mission of Christ into this world to die for them; in the regeneration of them, the pardon of their sins, and eternal life: and this mercy is not only extended to persons in the several parts of the earth, but is as high as the heaven above it, (<19A311>Psalm 103:11); and thy truth unto the clouds; the faithfulness of God in performing his purposes and his promises; or the Gospel, and the…”

“In God will I praise his word - Luther renders this, “I will praise the word of God.” The phrase “in God” means probably “in respect to God;” or, “in what pertains to God.” That which he would “particularly” praise or celebrate in respect to God - that which called for the most decided expressions of praise and gratitude, was his “word,” his promise, his revealed truth. So in Psalms 138:2, “Thou hast magnified thy word above all thy name;” that is, above all the other manifestations of thyself. The allusion in the passage here is to what God had “spoken” to David, or the “promise” which he had made - the declaration of his gracious purposes in regard to him. Amidst all the perfections of…”

“Psa 56:4, Psa 60:6; Gen 32:11; Mat 24:35; Heb 6:18; Pe2 1:4 Psalms 56:11”