The teachers of the law and the Pharisees were watching Jesus closely. They were waiting to see if he would heal on the Sabbath day. They wanted to see him do something wrong so that they could accuse him.
It is the same with us. Now we see God as if we are looking at a reflection in a mirror. But then, in the future, we will see him right before our eyes. Now I know only a part, but at that time I will know fully, as God has known me.