The union which the elect have with Christ is the work of God's grace,[1] whereby they are spiritually and mystically, yet really and inseparably, joined to Christ as their head and husband;[2] which is done in their effectual calling.[3]
1:
Ephesians 1:22
Ephesians 2:6-7
2:
1 Corinthians 6:17
John 10:28
Ephesians 5:23
Ephesians 5:30
3:
1 Peter 5:10
1 Corinthians 1:9