Speak what is pleasant. Speak no disagreeable truth, speak no agreeable falsehood. Truth always exists in a pure unmixed state. Truth includes self-restraint, absence of jealousy, forgiveness, patience, endurance, kindness, love. Peace is truth.
Truth is peace.
If you want to attain peace, be truthful at all times. Mind is exalted by truthfulness. Intellect is refined by sublime divine ideas. It shines like a clean mirror and reflects the divine form of the Lord with great effulgence. All is well with him whose heart is turned towards the True.