And this [shall be] a sign unto you; Ye shall find the babe wrapped in swaddling clothes, lying in a manger.
Note 2 at Lu 2:12: Signs were used throughout the Word of God to convince unbelievers of God's power (Ex 4:8-9; Joh 4:48, and 20:30-31). The Greek word used for "sign" is "SEMEION." It is translated as "sign" fifty-one times, "miracle" twenty-two times, "token" one time, and "wonder" three times. Although God used signs to convince people many times, sign-seekers are rebuked (Mt 12:38-39 and 16:1-4). There are lying signs and wonders (De 13:1-3 and 2Th 2:9). True believers in Jesus will have signs follow them (Mr 16:17-18) and the preaching of God's Word (Mr 16:20).