Add punctuation: The key principle is that promises and treaties must be respected including the social contract between the states citizens and their legitimate ruler
A: The key principle is that promises and treaties must be respected, including the social contract between the state's citizens and their legitimate ruler.

Add punctuation: 128In that day Yahweh will defend the inhabitants of Jerusalem He who is feeble among them at that day will be like David and the house of David will be like God like the angel of Yahweh before them
A: 12:8In that day Yahweh will defend the inhabitants of Jerusalem. He who is feeble among them at that day will be like David, and the house of David will be like God, like the angel of Yahweh before them.

Add punctuation: Q My phone number is not filled in correctly anymore
A:
Q: My phone number is not filled in correctly anymore.