Love seeks to protect the reputation of others and treats the transgressions of others as something to be kept out of sight. Just as a man would like his own sins to be hidden from public scrutiny for the shame attached to them, so he wants to hide the sins of his friends also.
Both husband and wife have faults. What would happen if first thing in the day there was a reviewing of all faults and a handing out of punishment? It would never finish, and the next day we would have to review this reviewing process also. The attitude described by Solomon in the first part of the verse depends on both parties realising that they have faults. By and large we know that the volume of sin is so great that justice cannot be done. The essence of friendship is to put nine tenths of the faults of others behind us, for many offences must be overlooked. We avoid the extreme of making an issue out of everything. Our relationships are based on tolerance, for if we do not overlook the failings of others, how can we expect them to overlook ours? If I must judge everything, it is as if I feel I am perfect.