'Professing' in the Bible

"See to it," He replied, "that you are not misled; for many will come assuming my name and professing, 'I am He,' or saying, 'The time is close at hand.' Do not go and follow them.

Years ago Theudas appeared, professing to be a person of importance, and a body of men, some four hundred in number, joined him. He was killed, and all his followers were dispersed and annihilated.