John 16:1 I have said all this to you to keep you from falling away.
Matthew 13:21 …yet he has no root in himself, but endures for a while, and when tribulation or persecution arises on account of the Word, immediately he falls away.
Acts 8:13, 18-24 Even Simon himself believed, and after being baptized he continued with Philip. And seeing signs and great miracles performed, he was amazed…Now when Simon saw that the Spirit was given through the laying on of the apostles’ hands, he offered them money, saying, “Give me also this power, that any one on whom I lay my hands may receive the Holy Spirit.” But Peter said to him, “Your silver perish with you, because you thought you could obtain the gift of God with money! You have neither part nor lot in this matter, for your heart is not right Before God. Repent therefore of this wickedness of yours, and pray to the Lord that, if possible, the intent of your heart may be forgiven you. For I see that you are in the gall of bitterness and in the bond of iniquity.” And Simon answered, “Pray for me to the Lord, that nothing of what you have said may come upon me.”
Acts 11:23 and he exhorted them all to remain faithful to the Lord with steadfast purpose.
Colossians 1:23 …provided you continue in the faith, stable and steadfast, not shifting from the hope of the Gospel which you heard…
Ezekiel 18:24 But if the** just man turn himself away** from his justice, and do iniquity according to all the abominations which the wicked man useth to work, shall he live? all his justices which he hath done, shall not be remembered
And don’t forget being “cut off” from the tree (Rm 11:13-22, and somewhere in the Gospel this analogy is also made.)
I could post so much more …PM me if you want me to email you a text file.