Why Islam always encourages telling the truth?
Truthfulness is a command of Allah (SWT), part of faith, and a quality of must for all prophets and is mentioned in 100 places in the Noble Qur’an. Therefore, there are two positive traits that Allah (SWT) wants the Muslim to acquire and be committed to in building his Islamic personality. Allah (SWT) wants the believer to aspire among the people they live with a feeling of trust whether in what they say or in how they deal with them. They would feel that the money or other trusts they have with him are safe, while the things he says to them are true. Being truthful and trustworthy is among the greatest virtues any human being can possess on the other hand lying leads to corruption and deceit in any society. Prophet Mohamed (pbuh), as we are told by his sira (biography), was known in the forty years before he declare his Prophet Hood by his truthfulness and returning the trusts, to the extent that he was called: The truthful and the trustworthy. People use this phrase when they want to