A.T. Robertson Commentary Hebrews 5:3

"and by reason thereof is bound, as for the people, so also for himself, to offer for sins." — Hebrews 5:3 (ASV)

For himself (περ εαυτου). Note περ three times here (περ του λαου, περ εαυτου, περ αμαρτιων), but in verse 1 υπερ ανθρωπων, υπερ αμαρτιων. In the Koine this interchange of περ (around) and υπερ (over) is common (Matthew 26:28).