A lot of characters and ideas from the Bible would make great Magic cards. Here are a few of my thoughts from the Old Testament.
You got any?
Creature – Israelite Prophet Legend (2/2)
T: Target King gets +2/+2.
T: Target King gets -2/-2.
Year of Jubilee (G1)
Return all permanents to their owner’s control. Untap all permanents you control. You cannot tap lands for mana or play activated abilities for the rest of this turn.
Lucifer, the Adversary (BlBlBl2)
Creature – Fallen Angel Legend (6/6)
4: Target creature gains +3/+0. Destroy that creature at end of turn.
[Lucifer is printed on a white card.]
David, Chosen Shepherd (WW2)
Creature – Israelite Legend (1/1)
If David deals combat damage to a creature with power or toughness 2 or more greater than his, destroy that creature, and flip David.
David, King of Israel
Creature – Israelite King Legend (2/3)
If David attacks, all attacking creatures get first strike.
Wages of Sin (Bl2)
Cumulative Upkeep: Place a -1/-1 counter on a creature you control.
Draw two cards during your draw phase.
Your maximum hand size is 6.
Fire of Retribution (RR)
Each creature that dealt damage to you this turn takes 5 damage.
Covenant Promises (Bu4)
Rearrange the top 10 cards of your library. Reveal only the last three cards, then place all 10 cards on top of your library.
Bronze Snake (3)
3, T: Remove all your poison counters.