How do we know that Christ came by water and blood according to the Bible?

Scripture provides multifaceted evidence that Christ came by both water and blood. His incarnation, marked by His birth, showcases His entry into the world as fully God and fully man. This is affirmed through prophecies fulfilled during His birth. Additionally, His baptism signifies the commencement of His public ministry and the fulfillment of righteousness while the shedding of blood at the cross underscores the ultimate sacrifice for sin. These testimonies are corroborated by both John’s writings in 1 John and the Gospel accounts of His crucifixion, which notably highlight the physical outpouring of blood and water from His side, signifying the full scope of His redemptive work.