“Then said Jesus to those Jews which believed on him, If ye continue in my word, then are ye my disciples indeed;”
King James Version (KJV)
8:29 The Father hath not left me alone - Never from the moment I came into the world.
8:32 The truth - Written in your hearts by the Spirit of God, shall make you free - From guilt, sin, misery, Satan.
8:33 They - The other Jews that were by, (not those that believed,) as appears by the whole tenor of the conversation. We were never enslaved to any man - A bold, notorious untruth. At that very time they were enslaved to the Romans.
Joh 8:31 If ye continue in my word, [then] ye are my disciples indeed. They "believed on him", but their faith was not yet made perfect by obedience. Hence he adds the condition of discipleship. Their belief must move them to accept his word and obey it. There is a condition, "continue in my word"; a promise, "shall be my disciple".