Lord, Jesus Christ our God, who taught us to pray continually for one another, thus fulfilling your commandment and manifesting our desire for your mercy, in your compassion watch over and protect my husband (wife) for all seen and unseen enemies. Grant him (her)health and complete wisdom so that he (she)may fulfill all his (her)obligations according to your will and
commandments. Protect him (her)from all temptations which he (she)does not have the strength to resist. Strengthen him (her)in the right faith and in perfect love, that we may live together in virtue, and direct our lives according to your precepts. For yours is the power and glory forever. Amen.
We implore you, merciful Lord: Help us to remember that marriage is indeed holy, and strengthen the sanctity of our union. Shower your grace upon us so that we may live our lives in true faithfulness and love. Help us to understand and trust each other fully, keeping quarrels and arguments far from us. Bestow your blessings upon us, and in your mercy, count us worthy of your kingdom: for you are our sanctification, and we offer glory to you: to the Father and to the Son and to the Holy Spirit, now and ever and unto ages of ages. Amen.
Taken from Orthodox Prayerbook by Mother Kassiana