Scriptures:

HEBREWS 6:1-12
Therefore let us leave the elementary doctrine of Christ and go on to maturity, not laying again a foundation of repentance from dead works and of faith towards God, and of instruction about washings, the laying on of hands, the resurrection of the dead, and eternal judgement.
And this we will do if God permits.

For it is impossible, in the case of those who have once been enlightened, who have tasted the heavenly gift, and have shared in the Holy Spirit, and have tasted the goodness of the word of God and the powers of the age to come, and then have fallen away, to restore them again to repentance, since they are crucifying once again the Son of God to their own harm and holding him up to contempt.

For land that has drunk the rain that often falls on it, and produces a crop useful to those for whose sake it is cultivated, receives a blessing from God.

But if it bears thorns and thistles, it is worthless and near to being cursed, and its end is to be burned.

Though we speak in this way, yet in your case, beloved, we feel sure of better things—things that belong to salvation.

For God is not unjust so as to overlook your work and the love that you have shown for his name in serving the saints, as you still do.

And we desire each one of you to show the same earnestness to have the full assurance of hope until the end, so that you may not be sluggish, but imitators of those who through faith and patience inherit the promises.

Isaiah 5:1-6
Let me sing for my beloved
    my love song concerning his vineyard:
My beloved had a vineyard
    on a very fertile hill.
He dug it and cleared it of stones,
    and planted it with choice vines;
he built a watchtower in the midst of it,
    and hewed out a wine vat in it;
and he looked for it to yield grapes,
    but it yielded wild grapes.
And now, O inhabitants of Jerusalem
    and men of Judah,
judge between me and my vineyard. 
What more was there to do for my vineyard,
    that I have not done in it?
When I looked for it to yield grapes,
    why did it yield wild grapes?
And now I will tell you
    what I will do to my vineyard.
I will remove its hedge,
    and it shall be devoured;[a]
I will break down its wall,
    and it shall be trampled down.
I will make it a waste;
    it shall not be pruned or hoed,
    and briers and thorns shall grow up;
I will also command the clouds
    that they rain no rain upon it.

Matthew 13:3-9
And he told them many things in parables, saying: “A sower went out to sow.

And as he sowed, some seeds fell along the path, and the birds came and devoured them.

Other seeds fell on rocky ground, where they did not have much soil, and immediately they sprang up, since they had no depth of soil, but when the sun rose they were scorched. And since they had no root, they withered away.

Other seeds fell among thorns, and the thorns grew up and choked them.

Other seeds fell on good soil and produced grain, some a hundredfold, some sixty, some thirty.

He who has ears, let him hear.”