We must not allow Satan to attack our marriage.

‘If a Christian gets married against God’s will, Satan can freely work in that family.

If either or both spouses are immature to marry, Satan will find plenty of room for attack.

Also, if a married couple doesn't obey the word of God or can't leave their parents,

so they give them a chance to intervene, then it's all too easy for Satan to attack the marriage.’

[Warren W. Wiersbe, “The Strategy of Satan”]