'Side' in the Bible

Then I looked again and considered all the acts of oppression that were being practiced under the sun. And behold I saw the tears of the oppressed and they had no one to comfort them; and on the side of their oppressors was power, but they had no one to comfort them.

In the day of prosperity be joyful,But in the day of adversity consider thatGod has made the one as well as the other,So that man will not find out anything that will be after him.