Psalms 40:10

I have not not hid thy righteousness within my heart,.... Meaning not the essential righteousness of God, though that was abundantly declared in the wounds, sufferings, and death of Christ; and which was the end indeed of his being a propitiation for sin, Ro 3:25; but his own righteousness, as before, which he wrought out, and brought in; and which is called the righteousness of God his Father, because it is approved of by him, and accepted with him, and which he imputes to all his people;I have declared thy faithfulness and thy salvation: trial is, the "faithfulness" of God in executing all his purposes, counsels, and decrees, which are said to be faithfulness and truth; and in fulfilling his covenant and promises, relating to the redemption and salvation of men by Christ; and in the mission of Christ into this world on that account; and in the accomplishment of all the prophecies of the Old Testament concerning him; and in making good all the particular promises of support, help, and strength, made to the Messiah himself: and by his "salvation" is meant, that which is of God the Father's appointing, continuing, and settling, in the council and covenant of grace; which he sent his Son to be the author of, and which he has obtained; and is the great doctrine of the Gospel preached by himself, and his faithful ministers, Lu 19:9;I have not concealed thy lovingkindness and thy truth from the great congregation; or "in the great congregation", as the Targum.