Nope, He came to fulfill the law. Matthew 5:17 “Do not think that I have come to abolish the Law or the Prophets; I have not come to abolish them but to fulfill them. He did not say everyone of us is the child of God. I am not sure there you are getting the "Behold God" as if Jesus is referring to the people.  Maybe you are referring to Luke 17:21  which Jesus says  nor will people say Here it is or there it is because the kingdom of God is in you midst. The kingdom of God is not in a church or temple it is within us. It is our choice to walk with Him or to walk in darkness.If we choose darkness we are not children of God. he did not say every one of us is a child of God.  Everyone of us can be if we choose to walk in truth. Free will is a great responsibility.