Balak son of Zippor saw all that Israel had done to the Amorites. - Numbers 22:2
The Eternal One spoke to Moses, saying, "Phinehas, son of Eleazar son of Aaron the priest, has turned back My wrath from the Israelites by displaying among them his passion for Me, so that I did not wipe out the Israelite people in My passion." - Numbers 25:10-11
Moses spoke to the heads of the Israelite tribes, saying: "This is what the Eternal has commanded: If a householder makes a vow to the Eternal or takes an oath imposing an obligation on himself, he shall not break his pledge; he must carry out all that has crossed his lips." - Numbers 30:2-3
These are the words that Moses addressed to all Israel on the other side of the Jordan. - Deuteronomy 1:1
Tishah B'Av is a day of mourning the destruction of both ancient Temples in Jerusalem.