Joshua 20:4
And when he that doth flee unto one of those cities shall stand at the entering of the gate of the city, and shall declare his cause in the ears of the elders of that city, they shall take him into the city unto them, and give him a place, that he may dwell among them.
Cross-reference
Joshua 20:9 summarizes the same purpose for all Israelites and foreigners, echoing the procedure described here.
Hebrews 6:18 uses the refuge imagery, with the manslayer's flight and acceptance at the gate prefiguring hope in Christ.
Numbers 35:12 gives the purpose of cities of refuge — protection until trial — which is the context for the admission process here.
Ruth 4:1 shows Boaz at the city gate to handle legal redemption—same gate setting as the manslayer's hearing in Joshua.
Ruth 4:2 has elders sitting at the gate, mirroring the legal assembly in Joshua where elders hear the refuge case.
Job 29:7 recalls Job sitting at the gate as a judge—similar to the elders' role at the gate in Joshua.
Proverbs 31:23 praises the husband known in the gates among elders—same image of elders at the gate as in Joshua.