Here is a great quote I found from Marriage Today magazine. It really brings home the power of a covenant and how important marriage is in God's eyes. It also reminds us of sacrifice and giving to others and the blessings that can come from that effort.
"The only way that marriage can work God’s way is through mutual sacrifice. When two people deny themselves and give themselves to each other selflessly, something truly wonderful is possible.
"You see, God is a covenant God. In God’s eyes, marriage is more than an institution or contract - marriage is a sacred covenant bond. When we recognize truth and conduct our lives accordingly, we’ll be positioned to experience the blessings and power that come from doing things God’s way."
Jimmy Evans, Marriage Today magazine