Amminadab

Amminadab, the ancestor of David (Sistine Chapel fresco by Michelangelo). On his left arm is a yellow Jewish badge.
A close-up on Amminadab from the Sistine Chapel fresco

Amminadab (Hebrew: עַמִּינָדָב, ‘Ammīnāḏāḇ, "my people are noble") is a minor character referred to in the Book of Exodus. He is the father-in-law of High Priest Aaron, brother of Moses.

Amminadab is also mentioned in the Book of Ruth (and also in the Gospel of Matthew and the Gospel of Luke) as the father of Nahshon, ancestor of King David and therefore the ancestor of Jesus.

This Amminadab was an Israelite mentioned in the lineage of Jacob's sons, Exodus 6:14-28. Mathew 1:1-16 shows a full record of ancestors and descendants.

The same name is mentioned in the Book of Samuel and 1 Chronicles. That man likely served in the tabernacle. He was one of 112 Levite descendants of Uzziel who received the great honor of bringing the Ark of the Covenant, back to Jerusalem from the Philistines.