Acts 4: 32And the multitude of them that believed were of one heart and of one soul: neither said any of them that ought of the things which he possessed was his own; but they had all things common. 33And with great power gave the apostles witness of the resurrection of the Lord Jesus: and great grace was upon them all. 34Neither was there any among them that lacked: for as many as were possessors of lands or houses sold them, and brought the prices of the things that were sold, 35And laid them down at the apostles’ feet: and distribution was made unto every man according as he had need. 36And Joses, who by the apostles was surnamed Barnabas, (which is, being interpreted, The son of consolation,) a Levite, and of the country of Cyprus, 37Having land, sold it, and brought the money, and laid it at the apostles’ feet.
Christians should avoid debt, especially paying dishonorable gain (see Council of Nicaea #17), and have nothing to do with gain by usury.