The saying "Jesus is Lord" serves as a statement of faith for millions of Christians who regard Jesus Christ as God (see Lord). It is the motto adopted by the World Council of Churches.

Romans 10:9 says:

That if you confess with your mouth, "Jesus is Lord," and believe in your heart that God raised him from the dead, you will be saved. (NIV)

Romans 14:9 says:
For this very reason, Christ died and returned to life so that he might be the Lord of both the dead and the living (NIV)

Christians who say "Jesus is Lord" are referring to this verse, which is a keystone of Bill Bright's Four Spiritual Laws.