Why did God institute marriage at Creation if Jesus states that there is none at the resurrection?

If Creation as it was made was good in God's eyes before the Fall, and in the New Heaven and New Earth in Revelation restores Creation to what God intended it to be, but marriage is not part of the new Creation, why did God institute it in the first place? I understand that we will have intimacy with God in Heaven, but God Himself was in the Garden of Eden where Adam and Eve were, and yet He still instituted marriage. However Jesus answers the Sadducees about the several-times-married woman stating there is no marriage. Am I misunderstanding something here? Or is Jesus' answer for a different context? I have checked for similar questions, and seen answers relating to Catholicism and Swedborgianism, but not in general to Protestantism.