Matthew 26:39

Then he went forward a short distance, and fell on his face and prayed. "O, my Father, if it be possible, let this cup pass from me; nevertheless, not as I will, but as thou wilt."

Matthew 27:46

But at three o'clock Jesus cried out in loud voice, "Eli, Eli, Lama Sabachthani?" (That is to say, "My God, my God, why hast thou forsaken me?")

Treasury of Scripture Knowledge

Summary

O my God, my soul is cast down within me: therefore will I remember thee from the land of Jordan, and of the Hermonites, from the hill Mizar.

Bible References

My god

Matthew 26:39
Then he went forward a short distance, and fell on his face and prayed. "O, my Father, if it be possible, let this cup pass from me; nevertheless, not as I will, but as thou wilt."
Matthew 27:46
But at three o'clock Jesus cried out in loud voice, "Eli, Eli, Lama Sabachthani?" (That is to say, "My God, my God, why hast thou forsaken me?")