How do we know that Jesus came to save everyone?

In the Gospel narratives, we see Jesus initially focused His ministry on the Jews, as He stated 'I am not sent but unto the lost sheep of the house of Israel' (Matthew 15:24). However, the essential truth of salvation is that Christ's sacrificial work extends beyond Israel. As stated in 1 John 4:10, God sent His Son as a propitiation not just for the Jewish people, but for all humanity. The Great Commission later reflects this truth as Jesus sends His disciples to 'make disciples of all nations' (Matthew 28:19). Thus, while Jesus' ministry began with the Jews, His redemptive act was intended for all, manifested through faith in Him across all races and nations.