I have not hidden your deliverance within my heart; I have spoken of your faithfulness and your salvation; I have not concealed your steadfast love and your faithfulness from the great congregation.
PSALM 40 David, being delivered from some great danger, and it may be, not from one only, but from many, extols very highly the grace of God, and by means of this, his soul is filled with admiration of the providence of God, which extends itself to the whole human race.
Commenting on Psalm 40:1-17
I have not hid thy righteousness within my heart. On the contrary, "Never man spake like this man." God's divine plan of making men righteous was well known to him, and he plainly taught it. What was in our great Master's heart he poured forth in holy eloquence from his lips. The doctrine of righteousness by faith he spake with great simplicity of speech.
The psalmist, being struck with amazement at the wonderful works that God had done for his people, is strangely carried out here to foretel that work of wonder which excels all the rest and is the foundation and fountain of all, that of our redemption by our Lord Jesus Christ.
Commenting on Psalm 40:6-10