Revelation 15:3

And they are singing the song of Moses the servant of God, and the song of the Lamb, saying, Great and wonderful are thy works, O Lord God Omnipotent; true and righteous are thy ways, thou King of the nations:

Romans 11:33-34

O the depth of the riches of the wisdom of the knowledge of God! His judgments are unsearchable, and his ways past tracing out.

1 Corinthians 2:10

But God has revealed them to us through the Spirit. For the Spirit searches all things, even the deep things 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 are singing the song of Moses the servant of God, and the song of the Lamb, saying, Great and wonderful are thy works, O Lord God Omnipotent; true and righteous are thy ways, thou King of the nations:

Deep

1 Corinthians 2:10
But God has revealed them to us through the Spirit. For the Spirit searches all things, even the deep things of God.