It had been revealed to him by the Holy Spirit that he should not see death before he had seen the Lord's Christ.{"Christ" (Greek) and "Messiah" (Hebrew) both mean "Anointed One"}
She had a son; she had to go through forty days of purification. If she had a daughter, she would have gone through eighty days of purification. Sort of a punishment for having a girl. Forty days of purification were accomplished.