What was the reason Isaiah's people had gone into captivity?

The captivity of Isaiah's people was primarily due to their disobedience to God. Throughout the book of Isaiah, the prophet repeatedly emphasizes that the people's rebellion against God's commandments and their failure to follow His guidance led to their downfall. This disobedience manifested in various ways, including social injustice, oppression of the poor, and a rejection of God's law.

While lack of knowledge can be a contributing factor to disobedience, it is the active choice to defy God's instructions that ultimately resulted in their captivity. The nation of Israel was warned by prophets like Isaiah about the consequences of turning away from God, yet they chose to ignore these warnings. Recognizing disobedience as the root cause also highlights the larger theme in Isaiah regarding the importance of a covenant relationship with God, where faithfulness and adherence to His will are essential for the well-being of the community.