Trust in the Lord with All Your Heart and Lean Not on Your Own Understanding. Prov 3:5 - Slate Hanging Sign The message 'Trust in the LORD with all your heart and lean not on your own understanding. Prov 3:5' is laser etched onto one side of the slate. This stunning and fun sign is a lovely addition to your home. Suitable for indoor or outdoor use. This sign is made by a family business in Wales, the Celtic land of King Arthur and also the Red Dragon. Dimensions: 18 x 10 x 0.4cm (not including rope).