What does Isaiah 1:2 mean?
Beginning with this verse, the first five chapters of Isaiah present God's case against His people Israel. These chapters are described as a lawsuit and are sometimes called the "great arraignment." As in a court of law, God will show how His people have broken the covenant agreement between Him and them. They are failing, repeatedly, to keep their end of their contractual arrangement with Him while He is keeping His end. God's case will be thorough and devastating.Yahweh begins by calling the heavens and earth to witness what He is about to say. Using poetic language, the Lord suggests that even works of creation will agree with Him about the behavior of His people. Nature itself will confirm His case against them.
The Lord's case, boiled down, is this: The children He has brought up have rebelled against Him. He created and developed and cared for and protected His children Israel from their beginning as a single man into a nation of millions. They have repaid Him with disobedience and defiance.