Here are several prayers from the Scripture we can use to express our dedication to God and His service.
Ps. 116:16-19 O Lord, truly I am your servant; I am your servant, the son of your maidservant; you have freed me from my chains. I will sacrifice a thank offering to you and call on the name of the Lord. I will fulfill my vows to the Lord in the presence of all his people, in the courts of the house of the Lord – in your midst, O Jerusalem. Praise the Lord.
Ps. 115: 1 Not to us, O Lord, not to us but to your name be the glory, because of your love and faithfulness.