Keep your servant also from willful sins; may they not rule over me. Then I will be blameless, innocent of great transgression. May these words of my mouth and this meditation of my heart be pleasing in your sight, Lord, my Rock and my Redeemer. Psalm 19:13-14 NIV
Not only what we talk about, but what we think about, is screened by the Lord. Ask yourself! Is it acceptable to the Lord?