Hi Jade,
Consider the seeds that fell on rocky places in the Parable of the Sower.Matt. 13 ”“
That day Jesus went out of the house and was sitting by the sea…………And He spoke many things to them in parables, saying, "Behold, the sower went out to sow; and as he sowed, some seeds …………fell on the rocky places, where they did not have much soil; and immediately they sprang up, because they had no depth of soil But when the sun had risen, they were scorched; and because they had no root, they withered away…………The one on whom seed was sown on the rocky places, this is the man who hears the word and immediately receives it with joy; yet he has no firm root in himself, but is only temporary, and when affliction or persecution arises because of the word, immediately he falls away…………
Note that there was a "new birth” and a "new creation”: A plant sprang up from the seed.
It withered away because it had no deep "root”.
If believers are firmly rooted in Christ, they will finish the race.
Paul addresses something similar in Romans 11. Instead of mentioning the sower, he refers to the "grafting in" within the vine of "the people he foreknew" (Romans 11:2):
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11 So I ask, did they stumble in order that they might fall? By no means! Rather, through their trespass salvation has come to the Gentiles, so as to make Israel jealous.
12 Now if their trespass means riches for the world, and if their failure means riches for the Gentiles, how much more will their full inclusion mean!
13 Now I am speaking to you Gentiles. Inasmuch then as I am an apostle to the Gentiles, I magnify my ministry
14 in order somehow to make my fellow Jews jealous, and thus save some of them.
15 For if their rejection means the reconciliation of the world, what will their acceptance mean but life from the dead?
16 If the dough offered as firstfruits is holy, so is the whole lump, and if the root is holy, so are the branches.
17 But if some of the branches were broken off, and you, although a wild olive shoot, were grafted in among the others and now share in the nourishing root of the olive tree,
18 do not be arrogant toward the branches. If you are, remember it is not you who support the root, but the root that supports you.
19 Then you will say, "Branches were broken off so that I might be grafted in.”
20 That is true. They were broken off because of their unbelief, but you stand fast through faith. So do not become proud, BUT FEAR.
21 FOR IF GOD DID NOT SPARE THE NATURAL BRANCHES, NEITHER WILL HE SPARE YOU.
22 Note then the kindness and the severity of God: severity toward those who have fallen, but God's kindness to you, PROVIDED YOU CONTINUE IN HIS KINDNESS. OTHERWISE, YOU TOO WILL BE CUT OFF.
23 And even they, if they do not continue in their unbelief, will be grafted in, FOR GOD HAS THE POWER TO GRAFT THEM IN AGAIN.
24 For if you were cut from what is by nature a wild olive tree, and grafted, contrary to nature, into a cultivated olive tree, how much more will these, the natural branches, be grafted back into their own olive tree.
Romans 11:11-24 (ESV)
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Note verses 20-24.