'Astray' in the Bible

“What do you think? If a man has a hundred sheep, and one of them gets lost, will he not leave the ninety-nine on the mountain and go in search of the one that is lost?

For many will come in My name [misusing it, and appropriating the strength of the name which belongs to Me], saying, ‘I am the Christ (the Messiah, the Anointed),’ and they will mislead many.

For false Christs and false prophets will appear and they will provide great signs and wonders, so as to deceive, if possible, even the elect (God’s chosen ones).