A.T. Robertson Commentary Hebrews 10:6

"In whole burnt offerings and [sacrifices] for sin thou hadst no pleasure:" — Hebrews 10:6 (ASV)

Thou hadst no pleasure (ουκ ευδοκησας). First aorist active indicative of ευδοκεω, common for God's good pleasure (Matthew 3:17). God took no pleasure in the animal offering (θυσιαν), the meal-offering (προσφοραν), the burnt-offering (ολοκαυτωματα), the sin-offering (περ αμαρτιας, concerning sin).