PHB pg. 219
Bless
1-level Enchantment
Casting Time: 1 Action
Range/Area: 30 Feet
Components: V, S, M
Materials: A sprinkling of holy water
Duration: Concentration, Up to 1 minute
You bless up to three creatures of your choice within range. Whenever a target makes an attack roll or a saving throw before the spell ends, the target can roll a d4 and add the number rolled to the attack roll or saving throw.
At higher levels: When you cast this spell using a spell slot of 2nd level or higher, you can target one additional creature for each slot level above 1st.
Available for: Cleric, Paladin