In the beginning of the Gospel of Luke we read:
‘In the days of King Herod of Judea, there was a priest named Zechariah, who belonged to the priestly order of Abijah. His wife was a descendant of Aaron, and her name was Elizabeth. Both of them were righteous before God, living blamelessly according to all the commandments and regulations of the Lord. But they had no children, because Elizabeth was barren, and both were getting on in years.’ Luke 1
This righteousness, according to Luke, had nothing to do with any messiah. Their righteousness came from blamelessly obeying all the Jewish law.
However, Paul wrote:
“I do not set aside the grace of God, for if righteousness could be gained through the law, Christ died for nothing!” Galatians 2:21
Oh dear! The whole point of Christianity refuted by its own scriptures!