וְעָשִׂ֙יתָ֙ עַל־הַחֹ֔שֶׁן שְׁתֵּ֖י טַבְּע֣וֹת זָהָ֑ב וְנָתַתָּ֗ אֶת־שְׁתֵּי֙ הַטַּבָּע֔וֹת עַל־שְׁנֵ֖י קְצ֥וֹת הַחֹֽשֶׁן׃
And thou shalt make upon the breastplate two rings of gold, and shalt put the two rings on the two ends of the breastplate.
Read halakhic rulings (Jewish law) on Exodus 28:23: and classical halakhic sources.