"After the end of the First Ecumenical Council, the Saint [Nicholas] came back to his See, where for five years he tirelessly continued to teach the word of God while always ensuring works of charity. In the year 330, however, he arrived at the end of his terrestrial life. Before his dormition, however, his biographer indicated that he raised his eyes to the sky and saw the holy angels who came to receive his soul, with a firm faith said:
A few moments before he passed, he was heared to whisper:
«Into Your hands Lord, do I commend my spirit.» and left on the earth the memory of a man of firm faith and infinite love."
Doxastikon in Tone 6.
Lovers of feasts, let us assemble and with songs of praise hymn the ornament of Hierarchs, the glory of the Fathers, the fount of wonders and greatest helper of believers, as we say, Hail guard, august leader and immovable pillar of the people of Myra. Hail brightly shining beacon, who irradiate with your wonders all the ends of the earth. Hail divine joy of the afflicted, and most fervent defender of the wronged. And now, all-blessed Nicolas, do not cease to intercede with Christ God on behalf of those who ever honour with faith and love your joyous and all-festive memory.
Apolytikion in the First Tone (amateur translations below)
Come let us all piously praise with hymns, the veneration of the divine relic of the blessed Shepherd, crying to him joyfully: Help us who faithfully praise you, we who are in all kinds of dangers, O Hierarch Nicholas. Glory to Christ Who glorified you, praising you with hymns, and Who radiantly showed you forth as our boast and an example of holiness.
Kontakion in the Plagal of the Fourth Tone
Though you descended into the grave, O Nicholas, yet you visit us who hymn you, and you, as an intercessor towards God, grant to the faithful you entreat you, speedy help, O leader and Hierarch of the people of Myra.
Open my mouth, O God my Savior, and fill it with divine wisdom, that I might be strengthened to worthily hymn the Great Teacher among Hierarchs, the Shepherd and Leader of the people of Myra, he who was truly innocent, undefiled, and blameless in all things, the protector of widows, the Father of orphans, the entreater for sinners, the savior of the innocent, and the guide and protector of those who sail the seas. And through the divine passage of his relic, he sanctified the world. But being astonished by the multitude of his divine graces, I cry to him with faith: Protect and preserve the world through your intercessions, O leader and Hierarch of the people of Myra.
On this day [either May 9, 10, or 20] we celebrate the Passage of the Sacred and Holy Relic of our Father among the Saints, Nicholas Archbishop of Myra of Lycia, the wonderworker.
With befitting words, let us all faithfully praise the holy passage of your body, O divine Nicholas, and may you protect those who call upon you from every danger, unharmed.
For the full service of the feast of the Translation, or the Passing of the Holy Relics of St. Nicholas the Wonderworker (May 10th, written by St. Nikodemos of the Holy Mountain), see: http://voutsinasilias.blogspot.com/2009/05/10.html.