Gold

About
Gold is a materials that can be obtained through ores, loot chests and mob killing and can be used to make items (eg. Golden armour and Netherite)

Ores
Gold can be obtained through ore found in the Minecraft world or from the mod.

Loot Table
Gold can also be obtained through loot chests.

Mob Killing
Gold can also be obtained by killing a mob.

More Detail
Minecraft Wiki: Gold