'Custom' in the Bible

according to the custom of the priestly office, he was chosen by lot to enter the temple of the Lord and burn incense.

And he came in the Spirit into the temple; and when the parents brought in the child Jesus, to carry out for Him the custom of the Law,

And when He became twelve, they went up there according to the custom of the Feast;

And He came to Nazareth, where He had been brought up; and as was His custom, He entered the synagogue on the Sabbath, and stood up to read.

And He came out and proceeded as was His custom to the Mount of Olives; and the disciples also followed Him.