The Bible tells us who is saved.
Mat 10:32 Whosoever therefore shall confess me before men, him will I confess also before my Father which is in heaven.
Jhn 3:36 He that believeth on the Son hath everlasting life: and he that believeth not the Son shall not see life; but the wrath of God abideth on him.
Rom 10:9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.
Rom 10:10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation
1Jo 4:15 Whosoever shall confess that Jesus is the Son of God, God dwelleth in him, and he in God.
1Jo 4:2 Hereby know ye the Spirit of God: Every spirit that confesseth that Jesus Christ is come in the flesh is of God:
A saved man is a temple of the Holy Spirit. The Spirit works in him .
The Holy Spirit does not indwell the unsaved.