God never reveals anything contrary to the Word of God. No one has quoted ANY relevant Scripture that says if we do not repent of certain sins we will become lost again. That is because there IS NO SUCH Scripture.......Christians repent of their sins to maintain a good relationship with the Father, not to remain saved......Just because I disobey my dad does not make me not his son anymore, it makes me a disobedient son!
"In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise," Ephesians 1:13
"And grieve not the holy Spirit of God, whereby ye are sealed unto the day of redemption." Ephesians 4:30
You can grieve the Holy Spirit....But it also gives a PROMISE here! We are sealed unto the day of redemption!
"And I give unto them eternal life; and they shall never perish, neither shall any man pluck them out of my hand. My Father, which gave them me, is greater than all; and no man is able to pluck them out of my Father's hand." John 10:28-29
"No man is able to pluck them out of my Father's hand". So what does that mean? No man! You, me, anyone CANNOT pluck yourself out of the Father's hand! I find it really discouraging that many professing Christians today are unsure or think they can do something to lose salvation.....Let the Word of God speak for itself.