Some examples of pious prayers from the prayer books:
Entering a Church: I will enter Thy gates with thanksgiving and Thy courts with praise.
Leaving a Church: Lord, Now lettest Thou Thy servant depart in peace, O Master, according to Thy word, for mine eyes have seen Thy salvation, which Thou hast prepared before the face of all peoples; a light of revelation for the Gentiles, and the glory of Thy people Israel.
Before Meals: The eyes of all hope in Thee, O Lord, and Thou givest them their food in due season, Thou openest Thy generous hand and fillest every living thing with good will.
After Meals: We thank Thee, O Christ our God, that Thou hast sated us with the good things of Thine earth: do not deprive us also of Thy heavenly Kingdom.
When about to fall asleep: Into Thy hands O Lord, Jesus Christ, my God, I commend my spirit; bless me, save me, and grant unto me ever-lasting life. Amen.