Numbers 35:6
And among the cities which you shall give to the Levites there shall be six cities for refuge, which you shall appoint for the manslayer, that he may flee thither: and to them you shall add forty and two cities.
Torrey's Topical Textbook—AKJV

Hebrews 6:18
That by two immutable things, in which it was impossible for God to lie, we might have a strong consolation, who have fled for refuge to lay hold on the hope set before us:
Torrey's Topical Textbook—AKJV