God Seals Those Who Belong to Him

Repentance is for those who are lost and need to become born again.

Confession is for the believers to be cleansed from sin.

1 John 1:9 "9 If we confess our sins, He is faithful and righteous, so that He will forgive us our sins and cleanse us from all unrighteousness."

There are no examples in the Bible for believers in which the Holy Spirit leaves them, that happened in the Old Testament when God only placed the Holy Spirit in certain people for specific purposes. Now, after Christ came we have the Holy Spirit permanently in every born-again believer as our security.

Ephesians 1:13-14

"13 In Him, you also, after listening to the message of truth, the gospel of your salvation—having also believed, you were sealed in Him with the Holy Spirit of the promise, 14 who is a first installment of our inheritance, in regard to the redemption of God’s own possession, to the praise of His glory."

Christ changes believers into a new creation, they will never go back to the old again, it is "eternal salvation."

John 3:16

"For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life"

Eternal life begins when the Holy Spirit comes to live in us. He never leaves after that.

Hebrews 13:5 says, "Keep your life free from love of money, and be content with what you have, for he has said, 'I will never leave you nor forsake you'".

God does not throw away His children who sin, He disciplines them.

Hebrews 12:4-11 "4 You have not yet resisted to the point of shedding blood in your striving against sin;

5 and you have forgotten the exhortation which is addressed to you as sons,

“My son, do not regard lightly the discipline of the Lord,

Nor faint when you are punished by Him;

6 For whom the Lord loves He disciplines,

And He punishes every son whom He accepts.”

7 It is for discipline that you endure; God deals with you as with sons; for what son is there whom his father does not discipline?

8 But if you are without discipline, of which all have become partakers, then you are illegitimate children and not sons.

9 Furthermore, we had earthly fathers to discipline us, and we respected them; shall we not much more be subject to the Father of spirits, and live?

10 For they disciplined us for a short time as seemed best to them, but He disciplines us for our good, so that we may share His holiness.

11 For the moment, all discipline seems not to be pleasant, but painful; yet to those who have been trained by it, afterward it yields the peaceful fruit of righteousness."