레위기 8:7의 Parshanut

Girded him with the sash. The garments of the kohanim atone for sin. For example, the ephod atones for idolatry, the pants atone for illicit relations, and the tunic for bloodshed (Zevachim 88). Chazal said that one punished even for his thoughts about transgressing only by idolatry. Therefore, the Kohein Godol’s sash, which atones for idolatry, must atone for thoughts as well, and thus it is a mixture of wool and linen like the ephod. However, an ordinary kohein’s garments atone for illicit relations and bloodshed, in which thoughts are not considered like deeds, and therefore their sashes are not a mixture of wool and linen.