And the man Elkanah, and all his house, went up to offer unto the LORD the yearly sacrifice, and his vow.
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George Leo Haydock
Vow, in consequence of his son's nativity. The sacrifice might be of precept, such as the paschal lamb, or for his wife's purification and the redemption of his first-born, as they could not attend in person. (Calmet)
Hebrew, "the victim of days and his vow "which he had probably made in conjunction with Anna. (Menochius)