25 And he cried to the Lord, and the Lord showed him a log, and he threw it into the water, and the water became sweet.

There the Lord made for them a statute and a rule, and there he tested them, (ESV)

7 and in the morning you shall see the glory of the Lord, because he has heard your grumbling against the Lord. For what are we, that you grumble against us?” 8 And Moses said, “When the Lord gives you in the evening meat to eat and in the morning bread to the full, because the Lord has heard your grumbling that you grumble against him—what are we? Your grumbling is not against us but against the Lord.” (ESV)

10 And as soon as Aaron spoke to the whole congregation of the people of Israel, they looked toward the wilderness, and behold, the glory of the Lord appeared in the cloud. 11 And the Lord said to Moses, (ESV)

13 In the evening quail came up and covered the camp, and in the morning dew lay around the camp. 14 And when the dew had gone up, there was on the face of the wilderness a fine, flake-like thing, fine as frost on the ground. 15 When the people of Israel saw it, they said to one another, “What is it?” For they did not know what it was. And Moses said to them, “It is the bread that the Lord has given you to eat. 16 This is what the Lord has commanded: ‘Gather of it, each one of you, as much as he can eat. You shall each take an omer, according to the number of the persons that each of you has in his tent.’” 17 And the people of Israel did so. They gathered, some more, some less. (ESV)

12 But Moses' hands grew weary, so they took a stone and put it under him, and he sat on it, while Aaron and Hur held up his hands, one on one side, and the other on the other side. So his hands were steady until the going down of the sun. 13 And Joshua overwhelmed Amalek and his people with the sword. (ESV)