Exodus 32:
33 The LORD replied to Moses, “Whoever has sinned against me I will blot out of my book. 34 Now go, lead the people to the place I spoke of, and my angel will go before you. However, when the time comes for me to punish, I will punish them for their sin.”
Psalm 69:
28 May they be blotted out of the book of life
and not be listed with the righteous.
Revelation 3:5
The one who is victorious will, like them, be dressed in white. I will never blot out the name of that person from the book of life, but will acknowledge that name before my Father and his angels.
Matthew 10:33
But whoever disowns me before others, I will disown before my Father in heaven.
Luke 12:9
But whoever disowns me before others will be disowned before the angels of God.
Matthew 4:7
Jesus answered him, “It is also written: ‘Do not put the Lord your God to the test.’ ”
1 John 2:27
As for you, the anointing you received from him remains in you, and you do not need anyone to teach you. But as his anointing teaches you about all things and as that anointing is real, not counterfeit—just as it has taught you, remain in him.
Romans 11:
18 do not consider yourself to be superior to those other branches. If you do, consider this: You do not support the root, but the root supports you. 19 You will say then, “Branches were broken off so that I could be grafted in.” 20 Granted. But they were broken off because of unbelief, and you stand by faith. Do not be arrogant, but tremble. 21 For if God did not spare the natural branches, he will not spare you either.
22 Consider therefore the kindness and sternness of God: sternness to those who fell, but kindness to you, provided that you continue in his kindness. Otherwise, you also will be cut off.
Hebrews 3:12-14
12 See to it, brothers and sisters, that none of you has a sinful, unbelieving heart that turns away from the living God. 13 But encourage one another daily, as long as it is called “Today,” so that none of you may be hardened by sin’s deceitfulness. 14 We have come to share in Christ, if indeed we hold our original conviction firmly to the very end.
We should have assurance of our salvation in and through Christ, but we shouldn't to a point to put our Lord God to a test and say to our own self we are saved and not trust in Christ alone to save us.