Jesus tells us that we are to be perfect as He is perfect (Matt 5:48). However, being human, it is impossible to be perfect. What do you think Jesus meant by this statement?
Here is a good example of perfection. Maybe it is close to what Jesus was meaning. A piano student practices day and night on a musical piece until he can execute it without error. His piano teacher would say that he plays “perfectly.” However, if he hasn’t moved on and is still playing the same piece a year later, he is no longer perfect.