The definition of a true child of God does not include unrepentant murderers, thieves, liars, etc. The Bible states this clearly. If I called myself a non-racist, but hated everyone but my own race, then surely I would be a hypocrite and children of God cannot be hypocrites. The Bible is packed with words about what a true child of God is like. Non-repentant murderers, thieves, liar, and the immoral do not inherit the Kingdom of God simple as that. They do not belong to God and by extension of that, they are not followers of Christ.
Many in the world today say bad things about God because of the iniquity caused by those who claim to be Christian. e.g., the Roman Catholic Church has a history of murder, lies, and immorality. Because of this, men speak evil of the truth. Below is a list of scriptures that show us the sins that God hates. If a religious organisation commits these, then it shows bad fruit and God should not get the blame for these sins. So please, don’t blame God. Blame the men who commit these things.
There are six things the Lord hates, seven that are detestable to him:
haughty eyes, a lying tongue, hands that shed innocent blood, a heart that devises wicked schemes, feet that are quick to rush into evil, a false witness who pours out lies, and a person who stirs up conflict in the community.
Lying lips are an abomination to the Lord, but those who act faithfully are his delight.
For this reason God gave them up to dishonorable passions. For their women exchanged natural relations for those that are contrary to nature; and the men likewise gave up natural relations with women and were consumed with passion for one another, men committing shameless acts with men and receiving in themselves the due penalty for their error.
1 Corinthians 6:9-10
Or do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived: neither the sexually immoral, nor idolaters, nor adulterers, nor men who practice homosexuality, nor thieves, nor the greedy, nor drunkards, nor revilers, nor swindlers will inherit the kingdom of God.
But as for the cowardly, the faithless, the detestable, as for murderers, the sexually immoral, sorcerers, idolaters, and all liars, their portion will be in the lake that burns with fire and sulfur, which is the second death.”
But nothing unclean will ever enter it, nor anyone who does what is detestable or false, but only those who are written in the Lamb’s book of life.
And finally, here are the commandments that God delivered to Moses.
Exodus 20 1-17
20 And God spoke all these words:
2 “I am the Lord your God, who brought you out of Egypt, out of the land of slavery.
3 “You shall have no other gods before[a] me.
4 “You shall not make for yourself an image in the form of anything in heaven above or on the earth beneath or in the waters below. 5 You shall not bow down to them or worship them; for I, the Lord your God, am a jealous God, punishing the children for the sin of the parents to the third and fourth generation of those who hate me, 6 but showing love to a thousand generations of those who love me and keep my commandments.
7 “You shall not misuse the name of the Lord your God, for the Lord will not hold anyone guiltless who misuses his name.
8 “Remember the Sabbath day by keeping it holy. 9 Six days you shall labor and do all your work, 10 but the seventh day is a sabbath to the Lord your God. On it you shall not do any work, neither you, nor your son or daughter, nor your male or female servant, nor your animals, nor any foreigner residing in your towns. 11 For in six days the Lord made the heavens and the earth, the sea, and all that is in them, but he rested on the seventh day. Therefore the Lord blessed the Sabbath day and made it holy.
12 “Honor your father and your mother, so that you may live long in the land the Lord your God is giving you.
13 “You shall not murder.
14 “You shall not commit adultery.
15 “You shall not steal.
16 “You shall not give false testimony against your neighbor.
17 “You shall not covet your neighbor’s house. You shall not covet your neighbor’s wife, or his male or female servant, his ox or donkey, or anything that belongs to your neighbor.”