We went there because of those who pretended to be followers and had sneaked in among us as spies. They had come to take away the freedom that Christ Jesus had given us, and they were trying to make us their slaves.
What is the use of the Law? It was given later to show that we sin. But it was only supposed to last until the coming of that descendant who was given the promise. In fact, angels gave the Law to Moses, and he gave it to the people.
All this has another meaning as well. Each of the two women stands for one of the agreements God made with his people. Hagar, the slave woman, stands for the agreement that was made at Mount Sinai. Everyone born into her family is a slave.
Don't let anyone fool you by using senseless arguments. These arguments may sound wise, but they are only human teachings. They come from the powers of this world and not from Christ.
By now you should have been teachers, but once again you need to be taught the simplest things about what God has said. You need milk instead of solid food.