On the fifteenth day of that month he went up to the altar he made in Bethel and burned more gifts; he picked this day by himself and made Israel do it too. ❌
On the fifteenth day of the eighth month, a month of his own choosing, Jeroboam offered sacrifices on the altar he had set up in Bethel. So he ordained a feast for the Israelites, offered sacrifices on the altar, and burned incense.
KJV
So he offered upon the altar which he had made in Bethel the fifteenth day of the eighth month, [even] in the month which he had devised of his own heart; and ordained a feast unto the children of Israel: and he offered upon the altar, and burnt incense.
ASV
And he went up unto the altar which he had made in Beth-el on the fifteenth day in the eighth month, even in the month which he had devised of his own heart: and he ordained a feast for the children of Israel, and went up unto the altar, to burn incense.