Shemot 3:8

וָאֵרֵ֞ד לְהַצִּיל֣וֹ ׀ מִיַּ֣ד מִצְרַ֗יִם וּֽלְהַעֲלֹתוֹ֮ מִן־הָאָ֣רֶץ הַהִוא֒ אֶל־אֶ֤רֶץ טוֹבָה֙ וּרְחָבָ֔ה אֶל־אֶ֛רֶץ זָבַ֥ת חָלָ֖ב וּדְבָ֑שׁ אֶל־מְק֤וֹם הַֽכְּנַעֲנִי֙ וְהַ֣חִתִּ֔י וְהָֽאֱמֹרִי֙ וְהַפְּרִזִּ֔י וְהַחִוִּ֖י וְהַיְבוּסִֽי׃ I have come down to rescue them from the Egyptians and to bring them out of that land to a good and spacious land, a land flowing with milk and honey, the region of the Canaanites, the Hittites, the Amorites, the Perizzites, the Hivites, and the Jebusites.

Hashem realized their pain and remembered the The Covenant of Pieces. He comes down to save the jews from egypt and give them aliyah to the land of israel.

After god was convinced they were in pain, he wanted to help them like he promised. He will save them by sending them to israel. A land of milk of honey. However, there are already people there.