In chapter 10 we read all the names of the people who as representatives signed the renwal of the covenant with God. And we read details of how they renewed their contributions, their giving to the temple so that something could happen…
God’s design was always that 11 of the 12 tribes had been given land so that they could work the land and provide for themselves and that they should also bring their tithes into God’s storehouse which in turn would provide for the 12th tribe – the Levites who weren’t given their own fields/lands and so couldn’t provide for themselves but needed to rely on the other 11 tribes as they devoted themselves to serving in worship and ministry.
God’s design was that 1 tribe would consecrate (set themselves aside to focus on something) themselves so that they could serve God and serve the other 11 tribes by ministering to them. And God’s design was that the other 11 tribes would commit to that 1 tribe in providing for them and would benefit from that 1 tribe in that they would be ministered to by that tribe.
God’s design is still the same, some are gifted and then set apart to give all their time to serving God by ministering to His people for their benefit, and those they minister to would in turn provide for them. A symbiotic relationship that serves God’s purposes in all people.