'Gift' 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,

leave your offering there at the altar and go. First make peace with your brother, and then come and present your offering.

But you say, ‘If anyone says to his father or mother, “Whatever [money or resource that] I have that would help you is [already dedicated and] given to God,”

You [spiritually] blind men, which is more important, the offering, or the altar that sanctifies the offering?