The promise of salvation is the greatest promise God has ever made to us!
If we can't be absolutely certain of this promise how can we be sure of ANYTHING else He has said???
If God's promise of salvation is not ABSOLUTELY GUARANTEED then how sure are you that healing is guaranteed, or prosperity is guaranteed, or protection or anything else He has ever promised you?
The Bible does say that the promises of God are YES and AMEN! (2nd Corinthians 1:20)
It also says that God is NOT a man that He should lie and that He is a Covenant keeping God! (Numbers 23:19; Deuteronomy 7:9)
The truth is that you can place your trust 100% in what God has promised because you can be "confident of this very thing, that He who has begun a good work in you will complete it until the day of Jesus Christ." (Philippians 1:6)
These 9 attributes of salvation explain very clearly why salvation is assured and cannot be broken.
If you are born again by the Spirit and the Word of God your salvation is absolutely certain and you can never lose it nor can it ever be taken away from you!
God bless you, richly!