How do we know we are one with Christ?

The assurance of our union with Christ comes through faith in Him and the act of baptism. Galatians 3:27 states that 'as many of you as have been baptized into Christ have put on Christ.' This signifies a spiritual immersion into Christ’s life and person, where the believer is wholly identified with Him. Just as Jacob was accepted as Esau through deception, believers are accepted by God because of their union with Christ, His Son. This profound mystery reflects God's grace, emphasizing that for Him to deny us would be akin to Him denying Himself, as expressed in 2 Timothy 2:13.