Foundation of the faith in Christ

Luke 20:1-18
Jesus doesn't answer what his authority by, for no matter what his answer is they don't believe in him.
The stone the builders rejected has become the capstone (corner stone)?
Jesus said another parable of tenants of vineyard.
Why?
The authority given to Jesus is come from heaven, as John Baptism. No man in the world can let man rise from the dead and heal the deaf and blind men and conquer the devil. Only Jesus comes to set us free from slave of sin.
Jesus is the stone, unbeliever rejects him, everyone who falls on that stone will be broken to pieces, but he on whom it falls will be crushed.
Jesus is the foundation to one who believes in Him. He may build a house of spirit to honor God's name.
How?
Stone could be foundation or be obstacle to anyone. Jesus is the foundation of my faith in Christ.