And lay thy foundations with sapphires. Isaiah 54:11
"NOT only that which is seen of the church of God, but that which is unseen, is fair and precious. Foundations are out of sight, and so long as they are firm it is not expected that they should be valuable; but in Jehovah's work everything is of a piece.
The deep foundations of the work of grace are as sapphires for preciousness, no human mind is able to measure their glory.Sapphire foundations are eternal.....Another foundation is the person of the Lord Jesus, which is clear and spotless, everlasting and beautiful as the sapphire; blending in one the deep blue of earth's ever rolling ocean and the azure of its all embracing sky.
Once might our Lord have been likened to the ruby as He
stood covered with His own blood, but now we see Him radiant with the
soft blue of love, love abounding, deep, eternal.
--- Foundations will all be tried ere
long: woe unto him whose lofty tower shall come down with a crash,
because based on a quicksand. He who is built on sapphires may await
storm or fire with equanimity, for he shall abide the test." Charles Spurgeon