Before Israel crossed the Jordan, Joshua sent two spies into Jericho. They were hidden by Rahab, a woman living in the city wall, who had heard what the Lord had done and confessed that he is God in heaven and on earth (Joshua 2:11). She asked for her family's lives, and the spies told her to hang a scarlet cord from her window.
The conquest of Jericho was not won by siege engines. For six days the people marched once around the city behind the ark, with priests blowing rams' horns; on the seventh day they marched seven times, shouted, and the wall fell.
“So when the rams’ horns sounded, the people shouted. When they heard the blast of the horn, the people gave a great shout, and the wall collapsed. Then all the people charged straight into the city and captured it.”
Rahab and her household were spared and lived among Israel (Joshua 6:25), and Matthew names her in the family line of Jesus (Matthew 1:5). Joshua laid a curse on anyone who rebuilt the city, which the writer of Kings records coming true generations later (1 Kings 16:34).
Jericho returns in the stories of the prophets. A company of prophets lived there; Elijah passed through on his last journey with Elisha (2 Kings 2:4), and afterward Elisha threw salt into the city's spring and its bad water was made wholesome (2 Kings 2:19).
In the Gospels, Jesus passes through Jericho on his final road to Jerusalem. A blind beggar named Bartimaeus shouts for mercy, refuses to be silenced and receives his sight (Mark 10:46). In the same city a rich chief tax collector, Zacchaeus, climbs a sycamore tree to see him, and Jesus invites himself to his house; Zacchaeus gives half his goods to the poor and repays fourfold anyone he cheated (Luke 19:1).