Luke

Wherefore take unto you the whole armour of God, that ye may be able to withstand in the evil day, and having done all, to stand.

Every branch in me that beareth not fruit he taketh away: and every branch that beareth fruit, he purgeth it, that it may bring forth more fruit.

And now abideth faith, hope, charity, these three; but the greatest of these is charity.

They went out from us, but they were not of us; for if they had been of us, they would no doubt have continued with us: but they went out, that they might be made manifest that they were not all of us.

But I have prayed for thee, that thy faith fail not: and when thou art converted, strengthen thy brethren.