13 and 14. First, Jesus makes it clear that his Father is the owner of all. He owns more than enough to care for his children. God provides mansions. Home is that place where we are sheltered, where we relax, where the staged performances for others are not necessary.
Home is safe, supportive, caring.
It is intentionally contrasted with all that is fleeting here in this life. Some have balked at Jesus' saying here, as if he were advocating materialism. He never does. One simply must understand that Jesus is speaking symbolically here. He is using language that is true in all ages, but which was also capable of understanding in the first century.