John 6:38-40.   For I came down from heaven, not to do mine own will, but the will of him that sent me. And this is the Father's will which hath sent me, that of all which he hath given me I should lose nothing, but should raise it up again at the last day. And this is the will of him that sent me, that every one which seeth the Son, and believeth on him, may have everlasting life: and I will raise him up at the last day. John 10:28.   And I give unto them eternal life; and they shall never perish, neither shall any man pluck them out of my hand. 2 Thess 3:3.   But the Lord is faithful, who shall stablish you, and keep you from evil. 1 John 2:19.   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.