Trust in the LORD forever, for the LORD GOD is an everlasting rock. Isa 26:4

Behold, I lay in Zion a choice stone, a precious corner stone,
And he who believes in Him will not be disappointed. 1 Peter 2:6

When David heard that Saul and his men were searching for him, he went even farther into the wilderness to the great rock….So Saul quit chasing David and returned to fight the Philistines. Ever since that time, the place where David was camped has been called the Rock of Escape. 1 Sam 23:25, 28

The wall was made of jasper, and the city of pure gold, as pure as glass.  The foundations of the city walls were decorated with every kind of precious stone. The first foundation was jasper, the second sapphire, the third agate, the fourth emerald,  the fifth onyx, the sixth ruby, the seventh chrysolite, the eighth beryl, the ninth topaz, the tenth turquoise, the eleventh jacinth, and the twelfth amethyst. Rev 21: 18-20