出埃及记 39:21

用一条蓝细带子把胸牌的环子和以弗得的环子系住，使胸牌贴在以弗得巧工织的带子上，不可与以弗得离缝，是照耶和华所吩咐摩西的。

And they did bind the breastplate by his rings unto the rings of the ephod with a lace of blue, that it might be above the curious girdle of the ephod, and that the breastplate might not be loosed from the ephod; as the LORD commanded Moses.