Preserverance of the Saints

I would love if none would ever fall away. However, if we choose to revice God’s grace, then it follows that one is able to choose to give back that grace. The following verses drive him this idea:

Hebrews 3:

¹²Take care, brothers, lest there be in any of you an evil, unbelieving heart, leading you to fall away from the living God. 13But exhort one another every day, as long as it is called “today,” that none of you may be hardened by the deceitfulness of sin. ¹⁴For we share in Christ, if indeed we hold our original confidence firm to the end. ¹⁵As it is said,

“Today, if you hear his voice,
do not harden your hearts as in the rebellion.”

¹⁶For who were those who heard and yet rebelled? Was it not all those who left Egypt led by Moses? ¹⁷And with whom was he provoked for forty years? Was it not with those who sinned, whose bodies fell in the wilderness? ¹⁸And to whom did he swear that they would not enter his rest, but to those who were disobedient? 19So we see that they were unable to enter because of unbelief.

and then Heb 10:26

²⁶For if we go on sinning deliberately after receiving the knowledge of the truth, there no longer remains a sacrifice for sins,