'Offering' in the Bible

So if you are presenting your offering at the altar, and while there you remember that your brother has something [such as a grievance or legitimate complaint] against you,

And Jesus said to him, “See that you tell no one [about this]; but go, show yourself to the priest [for inspection] and present the offering that Moses commanded, as a testimony (evidence) to them [of your healing].”

And [you scribes and Pharisees say], ‘Whoever swears [an oath] by the altar, that is nothing (non-binding), but whoever swears [an oath] by the offering on it, he is obligated [as a debtor to fulfill his vow and keep his promise].’

so that on you will come the guilt of all the blood of the righteous shed on earth, from the blood of righteous Abel to the blood of Zechariah [the priest], the son of Berechiah, whom you murdered between the temple and the altar.