In Luke 13:3 Jesus gave stern warning on repentance. He told the story of a fig tree which is not fruiting and said it should be cut down as it is using up soil in Luke 13:7 and request for delay or grace in vs 8.
Luke 13:3-9
[3]No indeed! And I tell you that if you do not turn from your sins, you will all die as they did.
[4]What about those eighteen people in Siloam who were killed when the tower fell on them? Do you suppose this proves that they were worse than all the other people living in Jerusalem?
[5]No indeed! And I tell you that if you do not turn from your sins, you will all die as they did.”
[6]Then Jesus told them this parable: “There was once a man who had a fig tree growing in his vineyard. He went looking for figs on it but found none.
[7]So he said to his gardener, ‘Look, for three years I have been coming here looking for figs on this fig tree, and I haven’t found any. Cut it down! Why should it go on using up the soil?’
[8]But the gardener answered, ‘Leave it alone, sir, just one more year; I will dig round it and put in some manure.
[9]Then if the tree bears figs next year, so much the better; if not, then you can have it cut down.’ ”