ALL of those passages are DESCRIPTIVE of what a true believer WILL do.
So IF you are a good tree, you WILL endure, overcome, and hold fast. That's exactly what Jesus said.
You Will Know Them by Their Fruits
15 “Beware of false prophets, who come to you in sheep’s clothing, but inwardly they are ravenous wolves. 16 You will know them by their fruits. Do men gather grapes from thornbushes or figs from thistles? 17 Even so, every good tree bears good fruit, but a bad tree bears bad fruit. 18 A good tree cannot bear bad fruit, nor can a bad tree bear good fruit. 19 Every tree that does not bear good fruit is cut down and thrown into the fire. 20 Therefore by their fruits you will know them.
Indeed a true believe will walk in His ways, but I see even more elements within each verse, including but not limited to
but I see this one as encouragement
Hebrews 10:36-8, “For
you have need of endurance, so that when you have done the will of the Mighty One you may receive what is promised. For yet a little while – He who is coming shall come and shall not delay. But the righteous shall live by belief, but if anyone draws back, my being has no pleasure in him.”
I see this as promise
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."
Revelation 3:21, “To him who overcomes I shall give to sit with Me on My throne, as I also overcame and sat down with My Father on His throne.”
here we are told how, they get harder as the list goes on
Revelation 12:11, “And they overcame him because of the Blood of the Lamb, and because of the Word of their witness, and they did not love their lives to the death."
I see this one as simple fact, indeed describing both those who are loveless and those who overcome
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.”
In any case those who enter His Kingdom do not give emply lip service but sincere faith that is paired with action, that is doing what He says. Giving their whole life even.
Matthew 7:12-19,“
Therefore, whatever you wish men to do to you, do also to them, for this is the Torah and the Prophets.“Enter in through the narrow gate! Because the gate is wide – and the way is broad – that leads to destruction, and there are many who enter in through it.“Because the gate is narrow and the way is hard pressed which leads to life, and there are few who find it. But beware of the false prophets,
who come to you in sheep’s clothing, but inwardly they are savage wolves. See also Mat 7:23.“By their fruits you shall know them. Are grapes gathered from thornbushes or figs from thistles?“So every good tree yields good fruit, but a rotten tree yields wicked fruit.“A good tree is unable to yield wicked fruit, and a rotten tree to yield good fruit.“
Every tree that does not bear good fruit is cut down and thrown into the fire.