'Willing' in the Bible

'Speak unto Aaron, and unto his sons, and unto all the sons of Israel, and thou hast said unto them, Any man of the house of Israel, or of the sojourners in Israel, who bringeth near his offering, of all his vows, or of all his willing offerings which they bring near to Jehovah for a burnt-offering;

And if ye walk with Me in opposition, and are not willing to hearken to Me, then I have added to you a plague seven times, according to your sins,