How do we know Jesus is Lord according to the Bible?

Philippians 2:10-11 states that every knee should bow and every tongue confess that Jesus Christ is Lord. This universal acknowledgment underscores that Jesus holds sovereign authority not only in heaven but also on earth and under the earth. It is integral to Christian belief that Jesus’ lordship is established by divine mandate, as God has commanded this acknowledgment to occur in all realms. This is a reminder that human acceptance or rejection does not change the truth of His lordship; it is an inherent reality established by God's will.