One lie confusing Christians is this one:
"All sins are the same in God's Eyes."
Christians who believe this are quick to point out that fornication, homosexuality, or transgenderization are no worse in God's eyes than gossip.
Placing all sins on equal footing is popular. It sounds fair-minded and non-judgmental, but it misrepresents the Gospel and God's character.
All sins have equal eternal consequences:
1. Without Christ, any sin sends us to hell.
2. With Christ, any sin can be forgiven.(1)
But this doesn't mean all sins are the same in God's eyes.
Sins have different earthly consequences, do different kinds of damage to our souls, and represent different degrees of rebellion. For example: Sexual sins are uniquely damaging (1 Corinthians 6:18-20), and "unnatural" sexual sins are a more serious rebellion against God and His design (Romans 1:18-32).(2)
God punishes sins differently(2) and describes some commands as more important than others (Matthew 23:23).
If we think God sees the rape of a child the same as gossip, we don't understand His character (Mark 9:42).
(1) There is actually one sin that God says cannot be forgiven (Matthew 12:31)
(2) We aren't supposed to create a "rating system" for sins because God judges each sin individually according to each man's motives and opportunities, but God clearly says some sins are more serious than others. See Numbers 15:22-31 Luke 12:47-48 James 3:1 Mark 12:38-40
This is such a popular lie, that you might want more confirmation, so check out these Biblical authorities/sites:
Billy Graham - Are All Sins the Same?
John Piper - Are All Sins the Same?
Apologetics Press - Are All Sins the Same?