The House of God is Christ–Head and Body. When Jesus said, "In my Father's house are many rooms," He was referring to Himself and the members of His Body. Heaven is the Throne of God. But Christ and His Body are the only House of God.
There are seven feasts of the Lord. The seventh and last observance is the feast of Tabernacles. Each of the seven feasts has a spiritual fulfillment under the new covenant. The spiritual fulfillments of the six preceding feasts have as their purpose bringing about the spiritual fulfillment of the feast of Tabernacles.
The spiritual fulfillment of the Levitical feast of Tabernacles was declared by the Lord Jesus:
Jesus replied, “If anyone loves me, he will obey my teaching. My Father will love him, and we will come to him and make our home with him. John 14:23)