Sin [ Romans 3 v23 ]

My son who is a street pastor, was asked by someone, does God forgive sins?somehow it did not occur to them that, God forgives sins. To us, of the older generation we take it for granted that God forgives sins, but we live in different times, the whole idea of sin, has taken on a different concept, so let us try and clarify what sin is.God has 10 commandments we read of them in Exodus 20, when we break them, we sin, in fact Jesus brought a deeper meaning to the law, when He taught,that if we think wrongly in our hearts this is also sinful, [ Matthew 5 v21ff ]. In 1John 3 v 4 we read, everyone who sins is breaking Gods law,and the fact of the matter , everyone of us has broken Gods law, [Romans 3 v23 ]. [Dear God help us today to realize what sin is, and with that realization, begin to seek after You, that our sins may be forgiven in Jesus name we ask this Amen ]