Final answer:
Hosea 4:13 suggests that the people of Israel commit adultery by idolatrous practices, symbolizing their spiritual unfaithfulness to God.
Step-by-step explanation:
According to Hosea 4:13, the people of Israel commit adultery metaphorically by turning away from God and engaging in idolatrous practices. In a literal sense, the verse speaks of the Israelites' and their daughters committing acts of physical adultery. However, in a broader context, the Book of Hosea often uses the theme of adultery to symbolize the faithlessness of the Israelite people toward God, referring to their worship of idols and the participation in the religious rituals of the surrounding pagan nations which were contrary to the laws of their own God. This passage emphasizes how the people had strayed from their covenant relationship with God and had embraced practices that were seen as spiritually adulterous.