'Died with Christ' in the Bible

Now if we have died with Christ [i.e., to the practice of sin], we believe we will also live with Him. [Note: This "living" probably refers to our spiritual relationship with Him during our Christian life].

Since you died with Christ to the basic principles of the world, [then] why, as though you [still] lived in [harmony with] the world, do you submit yourselves to [its] rules, [such as]:

This saying is trustworthy: For if we have died with Christ [i.e., stopped the practice of sin, See Rom. 6:1-11], we will also live with Him [i.e., both here and hereafter].