'Matter' in the Bible

For behold, this selfsame thing, that ye were made sorry after a godly sort, what earnest care it wrought in you, yea what clearing of yourselves, yea what indignation, yea what fear, yea what longing, yea what zeal, yea what avenging! In everything ye approved yourselves to be pure in the matter.

and not only so, but who was also appointed by the churches to travel with us in the matter of this grace, which is ministered by us to the glory of the Lord, and to show our readiness:

Avoiding this, that any man should blame us in the matter of this bounty which is ministered by us:

I thought it necessary therefore to entreat the brethren, that they would go before unto you, and make up beforehand your aforepromised bounty, that the same might be ready as a matter of bounty, and not of extortion.