'Seventh' in the Bible

In the seventh year, in the fifth month, on the tenth of the month [after the beginning of the exile in Babylon], certain of the elders of Israel came to inquire of the Lord and sat down before me.

In the eleventh year [after King Jehoiachin was taken to Babylon], in the first month, on the seventh of the month, the word of the Lord came to me, saying,

You shall do this on the seventh [day] of the month for everyone who goes astray [and sins through error or ignorance] and for him who is naive; so shall you make atonement for the temple (house).

In the seventh month, on the fifteenth day of the month at the feast, he shall provide [offerings] like these for the seven days, as the sin offering, the burnt offering, the grain offering, and the oil.”