I see this as "saved or born again" in modern verbage:
Hebrews 10:16, "This is the covenant that I will make with them after those days, says YHWH: I will put My Law into their hearts, and in their minds I will write them.”
and this are truly born again/recieved salvation:
1 Corinthians 15:51-55, “See, I speak a secret to you: We shall not all sleep, but we shall all be changed, in a moment, in the twinkling of an eye, at the last trumpet. For the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed. For this corruptible has to put on incorruption, and this mortal to put on immortality. And when this corruptible has put on incorruption, and this mortal has put on immortality, then shall come to be the word that has been written, “Death is swallowed up in overcoming. O Death, where is your sting? O grave, where is your overcoming?”
Mat 24:29-31, “And immediately after the tribulation of those days the sun shall be darkened, and the moon shall not give its light, and the stars shall fall from the heaven, and the powers of the heavens shall be shaken. And then the sign of the Son of Aḏam shall appear in the heaven, and then all the tribes of the earth shall mourn, and they shall see the Son of Aḏam coming on the clouds of the heaven with power and much esteem. And He shall send His messengers with a great sound of a trumpet, and they shall gather together His chosen ones from the four winds, from one end of the heavens to the other.”
that is why it is said:
Matthew 10:22, “And you will be hated by all for my name's sake. But the one who endures to the end will be saved.”
Matt 24:12-13, “And because of the increase in lawlessness, the love of many shall become cold. But he who shall have endured to the end shall be saved.”
Hebrews 10:36, “For you have need of endurance, so that when you have done the will of Yah you may receive what is promised.”
Hebrews 3:14, “For we have become partakers of Messiah if we hold fast the beginning of our trust firm to the end.”
James 1:12, "Blessed is the man who does endure trial, for when he has been proved, he shall receive the crown of life which the Master has promised to those who love Him."
I thnk this sums it up well:
John/Yahanan 15:5-16, "I am the vine, you are the branches. He who abides in Me, and I in him, produces much fruit; but without Me, you can do nothing. If anyone does not abide in Me, he is thrown away like a branch, and is withered; and they gather them and throw them into the fire, and they are burned. If you abide in Me, and letting My words; abide in you, you will ask what you will, and it will be done for you. In this is My Father glorified: when you produce much fruit; and in this way you become My disciples. Just as the Father has loved Me, so have I loved you; continue in My love. If you keep My Commands, you will abide in My love; just as I have kept My Father's Commands, and abide in His love. These things I have spoken to you, that My joy might remain in you, and that your joy might be complete. This is My Command: Love one another as I have loved you. Greater love has no one than this: that one would lay down his life on behalf of his brothers. You are My brothers, if you do whatever I command you."