In the context of ancient Israel, worship was meant to be centralized in the temple in Jerusalem, where God had established His presence. However, the practice of offering sacrifices and burning incense at high places, hilltops, and under spreading trees was a common deviation, often associated with idolatry and the worship of foreign gods. These locations were chosen for their elevation and natural beauty, which were thought to bring worshipers closer to the divine. This behavior reflects a broader theme in the Old Testament, where the Israelites frequently struggled with the temptation to adopt the religious practices of neighboring cultures.
The verse underscores the importance of adhering to the worship practices that God had ordained, emphasizing the need for purity and dedication in worship. It serves as a cautionary tale about the dangers of allowing cultural influences to lead one away from true worship. For modern readers, it can be a reminder to examine our own practices and ensure they align with our faith's core teachings, encouraging us to remain steadfast in our devotion and obedience to God.