Revelation 15:3

And they sang the song of Moses, the servant of God, and the song of the Lamb, saying, "Great and marvelous are Thy works, O Lord God, the Almighty; righteous and true are Thy ways, Thou King of the ages.

Romans 11:33-34

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,

1 Corinthians 2:10

but to us God revealed them through the Spirit; for the Spirit searcheth all things ??ven 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 sang the song of Moses, the servant of God, and the song of the Lamb, saying, "Great and marvelous are Thy works, O Lord God, the Almighty; righteous and true are Thy ways, Thou King of the ages.

Deep

1 Corinthians 2:10
but to us God revealed them through the Spirit; for the Spirit searcheth all things ??ven the deep things of God.