Do We Need to Keep Fasting if We're Building the Temple Again?

The Jews or the people of Israel that were in Babylon began fasting a couple times a year on the fifth month. They come to Zachariah and they say do we need to keep fasting I mean we're rebuilding our temple yet it isn't finished until 516. The Lord answers them in such an interesting way he said let's look at that. He talks about social injustices that are already existing again just like hegai did.