Nay, We hurl the Truth against falsehood, and it knocks out its brain, and behold, falsehood doth perish! Ah! woe be to you for the (false) things ye ascribe (to Us).
To Him belong all (creatures) in the heavens and on earth: even those who are in His (very) Presence are not too proud to serve Him. Nor are they (ever) weary (of His service):[Qur'an 21:18-19]

Narrated 'Abdullah(RA): The Prophet(PBUH) said, "Truthfulness leads to righteousness, and righteousness leads to Paradise. And a man keeps on telling the truth until he becomes a truthful person. falsehood leads to Al-Fajur (i.e. wickedness, evil-doing), and Al-Fajur (wickedness) leads to the (Hell) Fire, and a man may keep on telling lies till he is written before Allah, a liar."