Why is the notion of Jesus as both God and man important for Christians?

The fact that Jesus is both God and man is essential for several theological reasons. First, it confirms His authority as the mediator between God and humanity. Only someone who is fully divine can intercede on behalf of humanity effectively, while someone fully human can represent us authentically. This dual nature validates the atonement; His sacrifice on the cross has infinite value because it was made by someone who is both God and man. Furthermore, it sets a pattern for Christian living, as believers are called to emulate Christ in both divinity and humanity, as seen in 1 John 2:6 where it encourages us to 'walk even as He walked.'