John 3:8

The Spirit breathes where it wills, and you hear its voice, but you know not whence it comes, nor whither it goes; so is every one that has been born of the Spirit.

Romans 11:33

O the depth of the riches both of the wisdom and knowledge of God! how inscrutable are his judgments, and his ways can not be explored!

Treasury of Scripture Knowledge

Summary

As thou knowest not what is the way of the spirit, nor how the bones do grow in the womb of her that is with child: even so thou knowest not the works of God who maketh all.

Thou knowest not what

General references

Bible References

Thou knowest not what

John 3:8
The Spirit breathes where it wills, and you hear its voice, but you know not whence it comes, nor whither it goes; so is every one that has been born of the Spirit.

Even

Romans 11:33
O the depth of the riches both of the wisdom and knowledge of God! how inscrutable are his judgments, and his ways can not be explored!

General references

John 9:10
Then they said to him, How then were your eyes opened?