1 Corinthians 7:5

Do not withdraw from one another, unless by consent for a season, that ye may attend to fasting and prayer: and come together again, least Satan tempt you through your incontinency.

Matthew 9:15

And Jesus said unto them, Can the friends of the bridegroom mourn, while the bridegroom is with them? but the days will come when the bridegroom shall be taken from them, and then they will fast.

Treasury of Scripture Knowledge

Summary

Gather the people, sanctify the congregation, assemble the elders, gather the children, and those that suck the breasts: let the bridegroom go forth of his chamber, and the bride out of her closet.

Bible References

Let

Matthew 9:15
And Jesus said unto them, Can the friends of the bridegroom mourn, while the bridegroom is with them? but the days will come when the bridegroom shall be taken from them, and then they will fast.
1 Corinthians 7:5
Do not withdraw from one another, unless by consent for a season, that ye may attend to fasting and prayer: and come together again, least Satan tempt you through your incontinency.