Our common faith can be best summarized by taking a look at the words of Ephesians 4:4-6:
one body – The Lord’s church is described as His body (Eph. 1:22-23). Christ is the head of that body and directs where it should go.
one Spirit – The Holy Spirit guided the men who wrote the Bible and dwells in the people of God.
one hope – Jesus is the hope of all the world (Col. 1:27). This one hope is offered to all, because all people, regardless of their background, need Christ (1 John 2:2).
one Lord – Because Christ is Lord, we all should submit ourselves to His authority. To enjoy what Christ has to offer us, we must obey Him (Heb. 5:8-9).
one faith – The Bible reveals what we should all believe (Jude 3). The one faith is the faith we all should share.
one baptism – Baptism is immersion in water. Baptism is where we put our old way of life to death (Rom. 6:3-4) and God forgives us of our sins (Acts 2:38).
one Father – The Father wants us to offer Him worship (John 4:24). He does not expect extravagance, just simple sincerity and obedience to His Will.