"I Will Call Upon the Lord" is a song by Petra. It was written and composed by Michael O'Shields. The song was released in 1989 as part of the band's first praise album, Petra Praise: The Rock Cries Out.
Words and music by Michael O'Shields
I will call upon the Lord
Who is worthy to be praised
So shall I be saved from my enemies
The Lord liveth and blessed be the Rock
And let the God of my salvation be exalted