en_obs-tn/content/12/03.md

After a short time

Probably at least two days had gone by. For that to be clear, it may be translated as, "After a few days" or, "A few days after the Israelites left Egypt."

changed their minds

This phrase means, "began to think differently than they had before." Some languages may not have this same expression, and will express the meaning in a direct way.