Let the words of my mouth and the meditation of my heart be acceptable in your sight, O Lord, my rock and my redeemer. - Psalms 19:14 ESV
Before you speak or think about anyone, remember your words and your thoughts, which come from your heart, must be acceptable in God's sight. As Christians, we're supposed to be God's examples here on earth. So, think before you speak and may both your words and your thoughts be a reflection of God in you.