The heart is deceitful above all things, and desperately wicked: who can know it? Jeremiah 17:9 KJV
Let our perspective of sin and mankind never deter away from the biblical viewpoint - man is naturally evil, sinful and wicked to the very core.
One thing that Christians should be mindful of, is ensuring that an attitude of indifference and complacency does not take place. Another thing is to not make excuses for sin.
We ought to remember that sin is high treason against our Lord, and that our faithful and just God must punish sin. Therefore, regardless of the sin, Christians should always have a repentant heart whilst understanding that there is no excuse for sin, and also a knowing that there is no sin which is not serious.
Let us ensure that our perspective of mankind and sin aligns with how the bible views it. Let us ask the Lord to help us lead holy lives in the spirit. Let us remember to praise and thank the Lord for being redeemed from the bondage of sin and subsequently the curse and consequences of sin (eternal Hell).