Bring any verse to prove that Lent is based on the Bible teachings.
1 Samuel 7:6 When they had assembled at Mizpah, they drew water and poured it out before the LORD. On that day they fasted and there they confessed, “We have sinned against the LORD.” Now Samuel was serving as leader of Israel at Mizpah.
Acts 14:23 Paul and Barnabas also appointed elders in every church. With prayer and fasting, they turned the elders over to the care of the Lord, in whom they had put their trust.
15. Psalm 35:13-14 Yet when they were ill, I put on sackcloth and humbled myself with fasting. When my prayers returned to me unanswered, I went about mourning as though for my friend or brother. I bowed my head in grief as though weeping for my mother.
There's three. Lent is keeping within the spirit of the Scriptures as taught by the Christian Church for a long time now. There is nothing wrong with having this period we call Lent as a time for prayer, fasting, and almsgiving coming as it does before the greatest gift ever given to man, the sacrifice of Jesus Christ.