'Necessary' in the Bible

But carefully select from among you, brothers, seven men who are well-attested, full of the Spirit and of wisdom, whom we may put in charge of this necessary task.

Both Paul and Barnabas replied courageously, "It was necessary to speak the word of God to you first. Since you reject it and do not consider yourselves worthy of eternal life, we are turning to the Gentiles.

But some from the religious party of the Pharisees who had believed stood up and said, "It is necessary to circumcise the Gentiles and to order them to observe the law of Moses."

For it seemed best to the Holy Spirit and to us not to place any greater burden on you than these necessary rules:

Of course, I myself was convinced that it was necessary to do many things hostile to the name of Jesus the Nazarene.