All the paths of the Lord are mercy and truth, To such as keep His covenant and His testimonies. (Psalm 25:10)
As God's path is both mercy and truth, no one can walk on His way without being truthful and honest. It is only when we bring our sins to Him that He shows mercy. However we need to do it in truth. Are you a lover of truth, or a person that hides from the truth and spread lies and rumors about others? Those that speak such, follows their own father, the deceiver of the nations.