Charles Ellicott Commentary Psalms 40:5

"Many, O Jehovah my God, are the wonderful works which thou hast done, And thy thoughts which are to us-ward; They cannot be set in order unto thee; If I would declare and speak of them, They are more than can be numbered." — Psalms 40:5 (ASV)

Many, O Lord. —Better,

“In numbers hast Thou made, Thou Jehovah my God,
Wonderful deeds and purposes for us.
There is nothing comparable to Thee ....
Would I declare, would I speak,
They are too many to number.”

For the third clause, “There is nothing comparable with Thee,” which is the rendering of the Septuagint, Vulgate, and Syriac, compare to Isaiah 40:17.