Romans 1, Seperated unto the Gospel

The Severity of Seperation unto the Gospel of Jesus Christ,to set off by boundary 

Romans 1:1Paul, a servant of Jesus Christ, called to be an apostle, separated unto the gospel of God,

Matthew 13:49 So shall it be at the end of the world: the angels shall come forth, and sever the wicked from among the just,

Matthew 25:32 And before him shall be gathered all nations: and he shall separate them one from another, as a shepherd divideth hissheep from the goats:

2 Cor. 6:17Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you,