Jonah is a type of the three days and three nights that Jesus died. Some have even speculated that Jonah died in the belly of the great fish. I don't really know how I feel about that. It seems to me to be syncretism with science today.
Matthew 15:8-10; Do not heed the way of those who would honor Jesus in words only. That includes the prosperity preacher, the local hypocrite, and the SJW. Those will go the way of the goats at the last judgment. Some choose to honor Jesus without committing to Him. They will find their just rewards.
The Sadducees and Pharisees were especially criticized by Jesus not because they were outside of the realm of right and wisdom. Instead, they were especially criticized because they were so close, yet so far. They honored the Messiah with words, yet did not recognize Him in front of them.
An interesting note on Matthew 16-27; Men will be repaid according to their deeds. Is this because of what good they did or what ill they did.
Matthew 18:10 refers to "the angels" of the little ones. Is this a reference to Guardian Angels? Do each of us have one?
I wonder if Saul had some official position from the context of Acts 8:3. Saul put the early Christians into prison. How? Was this a debtor's prison or something very similar, or was this the official prisons of the Empire?