Some people argue that the killings in the exodus part of the Bible is not just. But there is an explanation of it. The killings are act of punishment by God to those evil people. But there is a deeper explanation of it. God is omniscient. He knows the future of those people which He punish in the exodus. He sees the future of them still evil and no hope of repentance or change for the good on those people, so to avoid further damage by those people and to stop their evil deeds God decided to punish them when it still early. Someone can ask " How about those innocent babies who are killed also?" The answer is God sees that those babies when they grow will also be evildoers because of the influence of the society around them. So while they are innocent, their life ends. We see here the love of God to those babies. He doesn't want those babies to commit sin and experience evil when they grow up. The acts of the killings in exodus are justified. Keys of understanding are considered here- God's omniscient, love, and punishment. Everythings has a purpose.
