In the Eastern Orthodox Church, the Presentation of Jesus at the temple is celebrated as one of the twelve Great Feasts.
Forty days after Christ was born He was presented to God in the Jerusalem Temple according to the Mosaic Law. At this time as well His mother Mary underwent the ritual purification and offered the sacrifices as prescribed in the Law. Thus, forty days after Christmas Church celebrates the feast of the presentation called the Meeting (or Presentation or Reception) of the Lord.
The meeting of Christ by the elder Simeon and the prophetess Anna (Lk 2.22–36) is the main event of the feast of Christ’s presentation in the Temple. It was “revealed to Simeon by the Holy Spirit that he would not see death before he had seen the Lord’s Christ” (Lk 2.26) and, inspired by the same Spirit, he came to the Temple where he met the new-born Messiah, took Him in his arms and said the words which are now chanted each evening at the end of the Orthodox Vespers service:
Lord, now lettest Thou Thy servant depart in peace, according to Thy word; for mine eyes have seen Thy salvation which Thou hast prepared in the presence of all peoples, a light for the revelation to the Gentiles, and for glory to Thy people Israel (Lk 2.29–32).
Elder Simeon