As Christians, there may be times when we doubt our salvation. But Christians can take comfort that God is faithful to us, despite our ability to waiver. While this is not a licence to abuse grace, it as a truth we must grasp and hold on to for comfort and strength to persevere. I’ll stop talking now and let scripture speak for itself.
And I am sure of this, that he who began a good work in you will bring it to completion at the day of Jesus Christ. – Philippians 1:6
Therefore, since we are surrounded by so great a cloud of witnesses, let us also lay aside every weight, and sin which clings so closely, and let us run with endurance the race that is set before us, looking to Jesus, the founder and perfecter of our faith, who for the joy that was set before him endured the cross, despising the shame, and is seated at the right hand of the throne of God. – Hebrews 12:1-2
And we know that for those who love God all things work together for good, for those who are called according to his purpose. For those whom he foreknew he also predestined to be conformed to the image of his Son, in order that he might be the firstborn among many brothers. And those whom he predestined he also called, and those whom he called he also justified, and those whom he justified he also glorified…. For I am sure that neither death nor life, nor angels nor rulers, nor things present nor things to come, nor powers, nor height nor depth, nor anything else in all creation (including ourselves), will be able to separate us from the love of God in Christ Jesus our Lord. – Romans 8:28-29, 38-39
My sheep hear my voice, and I know them, and they follow me. I give them eternal life, and they will never perish, and no one will snatch them out of my hand. – John 10:27-28
For by a single offering he has perfected for all time those who are being sanctified. – Hebrews 10:14
Never will I leave you; never will I forsake you. – Hebrews 5:13
But I am not ashamed, for I know whom I have believed, and I am convinced that he is able to guard until that Day what has been entrusted to me. – 2 Timothy 1:12
But now that you have come to know God, or rather to be known by God, how can you turn back again to the weak and worthless elementary principles of the world, whose slaves you want to be once more? (rhetorical question) – Galatians 4:9-10