Agreed.
Agree again, that's two.
I am not so sure about this one, Brother. How can we "unbelieve/unfaith" ourself? We can not "unfaith" ourself.
Agree.
Here are some verses I want you to ponder on, okay, Brother?
Rev. 3:20 Behold, I stand at the door, and knock: if any man hear my voice, and open the door, I will come in to him, and will sup with him, and he with me.
John 14:23Jesus answered and said unto him, If a man love me, he will keep my words: and my Father will love him, and we will come unto him, and make our abode with him.
John 14:26But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you.
Now, here you see several verses where it shows that when we are saved, we get the Triune God; God the Father, God the Son, and God the Holy Spirit. They come into our soul and make their abode in our soul. Now, if one could reject their faith, and go out and be lost again, then that would mean the Triune God would have to leave. Here is what Jesus says about leaving us:
Matt. 28:18-20
18 And Jesus came and spake unto them, saying, All power is given unto me in heaven and in earth.
19 Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost:
20 Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you always, even unto the end of the world. Amen.