What does it mean for Zion to give birth to a 'son'? This isn't just about population growth; it speaks to the nature and identity of the new community.
The birth of a 'man child' in ancient cultures was often a cause for great celebration, signifying strength and a continuation of the lineage. In Isaiah 66:7, this 'man child' represents the new Israel – a vibrant, strong, and divinely appointed nation.
This new entity is not built on human effort or gradual development but is a direct creation of God's power. It's a collective 'son' that represents the restored and purified people of God, possessing a robust spiritual vitality. The commentators suggest this 'man child' can be understood collectively, representing the entirety of the faithful who form the true spiritual Israel.