The Realms Resurgent
The Sacred Fist is a variant of Monk; specifically, it is a Monastic Tradition. Hit Points, proficiencies, saves, and skills are unchanged from the PHB (page 77).
Disciple of the gods
When you choose this tradition at 3rd level, you gain blessings from your deity (or pantheon or whichever divine source of power you revere). A blessing requires you to spend ki points to activate it.
You have a number of these blessings based on your level:
3: 1 blessing
6: 2 blessings
11: 3 blessings
17: 4 blessings
When you gain a new blessing, you may also replace a blessing you already know with another blessing.
Several of these blessings allow you to cast certain divine spells. See chapter 10 for general rules of spellcasting. To cast one of these spells, you use its casting time and other rules, but you don’t need to provide material components for it. From fifth level onwards, you can spend ki points to increase the level of the spell. See the Spell and Ki points entry on page 80 of the PHB for details.
Aura of Faith: You can spend 2 ki points to cast Shield of Faith.
Aura of Protection: You can spend 2 ki points to cast Protection from Evil & Good.
Clutch of the Holy (6th Level Required): You can spend 3 ki points to cast Hold Person.
Divine Ability (6th Level Required): You can spend 3 ki points to cast Enhance Ability.
Divine Attunement: As an action, you can cast Thaumaturgy.
Divine Prescience: You can spend 2 ki points as a reaction to impose disadvantage against one opponent’s attacks for a round.
Gift of Tongues (11th Level Required): You can spend 4 ki points to cast Tongues.
Healing Touch (4th Level Required): You can spend 2 ki points to cast Cure Wounds.
Holy Circle (11th Level Required): You can spend 4 ki points to cast Magic Circle.
Holy Liberty (17th Level Required): You can spend 5 ki points to cast Freedom of Movement.
Holy Presence (13th Level Required): You can spend 5 ki points to cast Banishment.
Holy Touch: you can spend 2 ki points to channel positive energy. When you use your unarmed strike and hit an undead creature, it rolls a Wisdom save or is turned (as per the cleric ability to turn undead). This ability lasts a number of rounds equal to your Wisdom modifier. A creature only needs to make the save the first time they are hit. You may spend 3 ki points instead to have this ability work against fiends.
Mantle of Protection (17th Level Required): You can spend 6 ki points to cast Dispel Evil & Good.
Righteous Presence (11th Level Required): You can spend 4 ki points to cast Dispel Magic.
Touch of Restoration (17th Level Required): You can spend 6 ki points to cast Greater Restoration.