Cross reference
Ecclesiastes 8:17
17 then I beheld all the work of God, that man cannot find out the work that is done under the sun: because however much a man labor to seek it out, yet he shall not find it; yea moreover, though a wise man think to know it, yet shall he not be able to find it.
Ecclesiastes 3:11
11 He hath made everything beautiful in its time: also he hath set eternity in their heart, yet so that man cannot find out the work that God hath done from the beginning even to the end.
Romans 11:33
33 O the depth of the riches both of the wisdom and the knowledge of God! how unsearchable are his judgments, and his ways past tracing out!
Psalms 73:16
16 When I thought how I might know this, It was too painful for me;
Ecclesiastes 7:23-24
23 All this have I proved in wisdom: I said, I will be wise; but it was far from me.
24 That which is, is far off and exceeding deep; who can find it out?
Job 5:9
9 Who doeth great things and unsearchable, Marvellous things without number:
Isaiah 40:28
28 Hast thou not known? hast thou not heard? The everlasting God, Jehovah, the Creator of the ends of the earth, fainteth not, neither is weary; there is no searching of his understanding.
Ecclesiastes 11:5
5 As thou knowest not what is the way of the wind, `nor' how the bones `do grow' in the womb of her that is with child; even so thou knowest not the work of God who doeth all.
Proverbs 30:3-4
3 And I have not learned wisdom, Neither have I the knowledge of the Holy One.
4 Who hath ascended up into heaven, and descended? Who hath gathered the wind in his fists? Who hath bound the waters in his garment? Who hath established all the ends of the earth? What is his name, and what is his son's name, if thou knowest?
Psalms 104:24
24 O Jehovah, how manifold are thy works! In wisdom hast thou made them all: The earth is full of thy riches.
Psalms 40:5
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.
Job 11:7-9
7 Canst thou by searching find out God? Canst thou find out the Almighty unto perfection?
8 It is high as heaven; what canst thou do? Deeper than Sheol; what canst thou know?
9 The measure thereof is longer than the earth, And broader than the sea.