The marriage vow or contract.

a big step and a lot of people find it frightening

a commitment by both the people involved and they should decide what happens between them

a commitment that has to survive lots of surprises

a commitment to a relationship and those involved ought to make up their own vows, etc

a covenant before God and couples should realize that when they are making vows during the wedding they are also doing it to God

a huge commitment that involves a lot of responsabilities

a life-long commitment made in front of God

a lifetime commitment that requires serious thought about who you are committing yourself to

a promise that a couple makes to commit to one another

a statement of commitment to the community, but it is also a contract whose terms are set by and changed by the state from time to time and whose terms most married people are only vaguely aware of

a very serious, lifetime, commitment

a very strong commitment and two people really have to think and get into something like that because it just happens once in a life time