Numbers 21:23

But Sihon would not allow Israel to pass through his border; instead Sihon gathered all his people together and went out against Israel into the wilderness; and he came to Jahaz and fought against Israel.

Judges 11:20

But Sihon did not trust Israel to pass through his border; but Sihon gathered all his people together and pitched camp in Jahaz and fought against Israel.

Numbers 20:21

Thus Edom refused to give Israel passage through his border; and thus Israel turned away from him.

Deuteronomy 2:30-32

But Sihon, king of Heshbon, would not let us pass by him, for the LORD thy God had hardened his spirit and made his heart obstinate that he might deliver him into thy hand as until this day.

Deuteronomy 29:7-8

And when ye came unto this place, Sihon, the king of Heshbon, and Og, the king of Bashan, came out against us unto battle, and we smote them;

Isaiah 15:4

And Heshbon shall cry, and Elealeh: their voice shall be heard even unto Jahaz; therefore the armed soldiers of Moab shall cry out; each one of them shall cry out for his soul.

Jeremiah 48:34

The cry, from Heshbon even unto Elealeh, and even unto Jahaz, they have uttered their voice; from Zoar even unto Horonaim, as a heifer of three years old; for the waters of Nimrim shall also be destroyed.

Treasury of Scripture Knowledge

Summary

And Sihon would not suffer Israel to pass through his border: but Sihon gathered all his people together, and went out against Israel into the wilderness: and he came to Jahaz, and fought against Israel.

Bible References

Sihon would

Deuteronomy 2:30
But Sihon, king of Heshbon, would not let us pass by him, for the LORD thy God had hardened his spirit and made his heart obstinate that he might deliver him into thy hand as until this day.
Deuteronomy 29:7
And when ye came unto this place, Sihon, the king of Heshbon, and Og, the king of Bashan, came out against us unto battle, and we smote them;

Jahaz

Judges 11:20
But Sihon did not trust Israel to pass through his border; but Sihon gathered all his people together and pitched camp in Jahaz and fought against Israel.
Isaiah 15:4
And Heshbon shall cry, and Elealeh: their voice shall be heard even unto Jahaz; therefore the armed soldiers of Moab shall cry out; each one of them shall cry out for his soul.
Jeremiah 48:34
The cry, from Heshbon even unto Elealeh, and even unto Jahaz, they have uttered their voice; from Zoar even unto Horonaim, as a heifer of three years old; for the waters of Nimrim shall also be destroyed.

General references

Numbers 20:17
Let us pass, I pray thee, through thy country; we will not pass through the fields or through the vineyards, neither will we drink of the water of the wells; we will go by the king's high way, we will not turn to the right hand nor to the left until we have passed thy borders.
Deuteronomy 2:18
Thou art to pass the border of Moab today unto Ar,
Judges 11:20
But Sihon did not trust Israel to pass through his border; but Sihon gathered all his people together and pitched camp in Jahaz and fought against Israel.
Judges 20:14
but the sons of Benjamin gathered themselves together out of the cities in Gibeah to go out to battle against the sons of Israel.
Psalm 136:19
Sihon king of the Amorites: for his mercy endures for ever: