Therefore I thought it necessary to exhort the brethren, that they would go before unto you, and make up beforehand your bounty, whereof ye had notice before, that the same might be ready, as a matter of bounty, and not as of covetousness.

So I thought it necessary to urge the brothers to visit you beforehand and make arrangements for the bountiful gift you had promised. This way, your gift will be prepared generously and not begrudgingly.