Revelation 15:3

And they sing the song of Moses the servant of God, and the song of the Lamb, saying: Great and marvelous are thy works, Lord God Almighty; just and true are thy ways, thou King of the nations;

Romans 11:33-34

O the depth of the riches, and of the wisdom, and of the knowledge of God! How unsearchable are his purposes, and his ways past finding out!

1 Corinthians 2:10

For God hath revealed them to us by his Spirit; for the Spirit searcheth all things, even the depths of God.

Treasury of Scripture Knowledge

Summary

O LORD, how great are thy works! and thy thoughts are very deep.

Bible References

O lord

Revelation 15:3
And they sing the song of Moses the servant of God, and the song of the Lamb, saying: Great and marvelous are thy works, Lord God Almighty; just and true are thy ways, thou King of the nations;

Deep

1 Corinthians 2:10
For God hath revealed them to us by his Spirit; for the Spirit searcheth all things, even the depths of God.