Warding Bond
You touch another creature that is willing and create a mystic connection between you and the target until the spell ends. While the target is within 60 feet of you, it gains a +1 bonus to AC and saving throws, and it has Resistance to all damage. Also, each time it takes damage, you take the same amount of damage.
The spell ends if you drop to 0 Hit Points or if you and the target become separated by more than 60 feet. It also ends if the spell is cast again on either of the connected creatures.
Warding Bond 5e 2024 vs. 2014 edition differences
The 2024 version adds the paladin class as a caster, whereas the 2014 version is limited to clerics. The wording changes from "wards a willing creature" to "touch another creature that is willing," but mechanics remain the same; no other significant differences in damage, healing, or duration.