1 Chronicles 29:17

I know also, my God, that thou triest the heart, and hast pleasure in uprightness. As for me, in the uprightness of mine heart I have willingly offered all these things: and now have I seen with joy thy people, which are present here, to offer willingly unto thee.

Ver. 17. I know … that thou triest the heart.] see Proverbs 17:3, See Trapp on " Pro 17:3 " It was David's comfort that he had to do with a heart searching God: for though the "sinners in Zion are afraid fearfulness surprise the hypocrites," neither are they able to "dwell with devouring fire," that is, to stand before the holy God, yet "he that walketh uprightly and speaketh righteously shall dwell on high," Isa 33:14-16 shall look God in the face with everlasting comfort, and dare appeal unto him, as here, for the uprightness of his heart - as touching the main - in performance of his service.

And hast pleasure in uprightness.] See on Psalms 51:6 .

In the uprightness of my heart.] Sincero, recto et candido corde, I can boldly and safely say it.