Introduction: We are called to live in the New Covenant and not to commit spiritual adultery with the Old Covenant. The New Covenant has supplanted the Old Covenant.

SPIRITUAL ADULTERY IN THE OLD COVENANT
Jeremiah 31:32

My covenant which they broke, though I was a husband to them.

Hosea 1:2 For the land has committed great harlotry by departing from the Lord.
   
SPIRITUAL ADULTERY IN THE NEW COVENANT
2 Corinthians 11:1-5 But I fear, lest somehow as the serpent deceived Eve by his craftiness so your minds may be corrupted.
Galatians1:6-8 I marvel that you are turning away so soon.
1 Timothy 4:1-3 Now the Spirit expressly says that in the latter times some will depart from the faith.
Galatians 5:4 You have become estranged from Christ you who attempt to be justified by law.
   
PAULINE APPLICATION AGAINST SPIRITUAL ADULTERY
Romans 7:1-4

Therefore my brethren you also have become dead to the law through the body of Christ that you may be married to another.

I Corinthians 15:14-19

And if Christ is not risen, then our preaching is empty and your faith is also empty.

II Corinthians 5:16

Therefore from now on we regard no one according to the flesh even though we have known Christ according to the flesh yet now we know him thus no longer.

Hebrews 6:1

Therefore leaving the discussion of the elementary principles of Christ.

   
FINAL NOTES
Marriage is a reflection of the union between Christ and his church. Ephesians 5:28-32
 John taught that we should know Jesus in the days of his flesh- I John 2:6