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
22 And hath put all things under his feet, and gave him to be the head over all things to the church,
Ephesians 2:6-7
6 And hath raised us up together, and made us sit together in heavenly places in Christ Jesus:
7 That in the ages to come he might show the exceeding riches of his grace in his kindness toward us through Christ Jesus.
2)
1 Corinthians 6:17
17 But he that is joined unto the Lord is one spirit.
John 10:28
28 And I give unto them eternal life; and they shall never perish, neither shall any man pluck them out of my hand.
Ephesians 5:23, 30
23 For the husband is the head of the wife, even as Christ is the head of the church: and he is the saviour of the body.
30 For we are members of his body, of his flesh, and of his bones.
3)
1 Peter 5:10
10 But the God of all grace, who hath called us unto his eternal glory by Christ Jesus, after that ye have suffered a while, make you perfect, stablish, strengthen, settle you.
1 Corinthians 1:9
9 God is faithful, by whom ye were called unto the fellowship of his Son Jesus Christ our Lord.