The verse reflects on God's promise to Abraham, which included making his descendants numerous and eventually bringing them out of Egypt. As the Israelites grew in number, it signified the nearing fulfillment of this divine promise. Despite being in a foreign land, the Israelites thrived, demonstrating God's provision and protection. This period of growth was essential for the future liberation and journey to the Promised Land.
The context of this verse is Stephen's speech before the Sanhedrin, where he recounts the history of Israel to illustrate God's faithfulness and the people's recurring resistance to His plans. By highlighting the increase in the Israelite population, Stephen underscores God's unwavering commitment to His covenant. This serves as a reminder that God's promises may take time to unfold, but they are certain and trustworthy. Believers are encouraged to have patience and faith, knowing that God's plans are always in motion, even when circumstances seem challenging.