Mark 12:25
There is nothing in the Old Testament that specifically says that their will be no marriage in heaven. However, there are plenty of passages that would lead one to assume that. Thus, Jesus is teaching these men to let their assumptions come from Scripture, not form thier own judgments.
Many have used this verse to say that we will be angels in heaven. But that is not what he said. He said we will be like the angels in the respect that we will not marry nor be given in marriage. Being like angels and actually being angels is two different things.
Heavenly Father, we will praise you for your goodness to us. You know when we need your blessings. You know that here in this present life marriage is a wonderful gift from you. When we get to heaven we know that we will receive other gifts from you that we cannot enjoy now. Thank you! In the name of the Lord Jesus Christ I pray and praise you, Amen.