direct
grows out of · Judah's throne
Jacob's blessing names the tribe; centuries later God names the family within it and promises the throne will last.
direct
points forward to · son of David
Matthew opens his Gospel with the title, and Gabriel tells Mary the child will receive the throne of his father David.
indirect
grows out of · the shepherd king
Israel's kings were called shepherds and mostly failed at it; Ezekiel promised God would shepherd the flock himself through a David to come.