The Bad Consequences of the Tongue

Part 1

The Heart:

The most important part of the body is the heart as has been mentioned by our noble Prophet Muhammed - SallAllahu 'alaihi wa sallam - in his saying, “Indeed there is a piece of flesh in your body that, if it be sound, then the whole body will be sound and if it be corrupt then the whole body will be corrupt. Indeed it is the heart.” - Sahih al-Bukhari & Sahih al-Muslim

The heart is thus the port where all actions stem, whether good or evil. If the heart is good then the actions will be good and if the heart is corrupt then the actions will be bad. The heart is the place where Allah scans, as the Messenger of Allah - SallAllahu 'alaihi wa sallam - says, “Allah does not look at your bodies nor your faces but he scans your heart and actions.” - Sahih al-Muslim

As for the heart, Allah has commanded us to love Him and His Messenger, to love the righteous people, to love that which Allah loves and to hate all which Allah hates. The tongue acts accordingly, because.... the tongue expresses what is in the heart.