I, therefore, the prisoner of the Lord, beseech you to walk worthy of the calling with which you were called, 2 with all lowliness and gentleness, with longsuffering, bearing with one another in love, 3 endeavoring to keep the unity of the Spirit in the bond of peace. Ephesians 4:1-3.
The way we walk in unity in the body of Christ is simply by walking in humility. When we are willing to walk and live in the character of Christ we will naturally walk in unity in all things. It is pride that causes discord and divisions. Our eyes must be taken off ourselves and focused upon Jesus Christ.
For us to truly walk in humility we must draw near to the Lord each day. Within ourselves we are not able to walk in humility. If we rely upon our own strength and wisdom we will fall short every time. As we draw near to the Lord and simply focus our hearts upon Him we will walk in humility and as a result we will be at unity with one another.