"Now you are the body of Christ, and each one of you is a part of it."
1 Corinthians 12:27

Let us see what Scripture has to say to us concerning our union with Christ.
1 Corinthians 12:12 reminds us that,
"The body is a unit, though it is made up of many parts; and though all its parts are many, they form one body. So it is with Christ."

The apostle Paul writing to the Ephesians concerning the maturing of Believes, so that we will no longer be infants, "Instead speaking the truth in love, we will in all things grow up in Him who is the Head, that is Christ. From Him the whole body, joined and held together by every supporting ligament, grows and builds itself up in love, as each part does its work." Ephesians 4:15-16

The marriage bond is another expression of our union with Christ:
"For the husband is the head of the wife as Christ is head of the church, His body, of which He is Savior." Ephesians 5:23

Another expression is that of a building:
"In Him the whole building is joined together and rises to become a holy temple in the Lord. And in Him you too are being built together to become a dwelling in which God lives by His Spirit." Ephesians 2:21-22

Then we have this beautiful expression of our union with Christ in John 15:4-5, "Abide in Me, and I in you. As the branch cannot bear fruit of itself, unless it abides in the vine, neither can you, unless you abide in Me. I am the vine and you are the branches. He who abides in Me, and I in him, bears much fruit; for without Me you can do nothing."
(What a glorious statement! He desires that we bear much fruit and He provides all that is necessary as we abide in Him and allow Him to live His life through us!)

Let's now look at our union in the 'withs':
Crucified with:
"For we know our old self was crucified with Him so that the body of sin might be done away with..." Romans 6:6

Buried with:
"We were therefore buried with Him through baptism into death in order that, just as Christ was raised from the dead through the glory of the Father, we too may live a new life." Romans 6:4

Made alive with:
(God) "made us alive with Christ even when we were dead in transgressions--it is by grace you have been saved." Ephesians 2:5

Seated in the heavenlies with:
"And God raised us up with Christ and seated us with Him in the heavenly realms in Christ Jesus." Ephesians 2:6

Reign with:
"If we endure, we will also reign with Him..." 2 Timothy 2:12

Glorified with:
"Now if we are children, then we are heirs--heirs of God and co-heirs with Christ, if indeed we share in His sufferings in order that we may also share in His glory." Romans 8:17

Our union with Christ is manifested in oneness:
Of mind:
For who has known the mind of the Lord that he may instruct him? But we have the mind of Christ." 1 Corinthians 2:16

Of Spirit:
"But he who units himself with the Lord is one with Him in spirit."
1 Corinthians 6:17

In suffering:
"I want to know Christ and the power of His resurrection and the fellowship of sharing in His sufferings, becoming like him in His death."
Philippians 3:10

In ministry (here Paul is writing to the Corinthians):
"All this is from God, who reconciled us to Himself through Christ and gave us the ministry of reconciliation: that God was reconciling the world to himself in Christ...and He has committed to us the message of reconciliation.  We are therefore Christ's ambassadors, as though God were making His appeal though us. We implore you on Christ's behalf; be reconciled to God."  2 Corinthians 5:18-20

Thank you, Lord God, that You so loved, You sent Your only begotten Son to not only save us, but that we might be made one with Him. It is too awesome to comprehend the magnitude of what/who we are in Christ. We humbly give You all the praise and glory for it is Yours alone.  Amen