The following quotes are taken from this article. He saw the consequences for a poor use of our money as exceedingly dire.
“Of the three rules which are laid down … you may find many that observe the first rule, namely, ‘Gain all you can.’ You may find a few that observe the second, ‘Save all you can.’ But, how many have you found that observe the third rule, ‘Give all you can’? Have you reason to believe that 500 of these are to be found among 50,000 Methodists? And yet nothing can be more plain than that all who observe the first rules without the third will be twofold more the children of hell than ever they were before.”
“… the Methodists in every place grow diligent and frugal; consequently they increase in goods. Hence, they proportionately increase in pride, in anger, in the desire of the flesh, the desire of the eyes, and the pride of life. So, although the form of religion remains, the spirit is swiftly vanishing away.
“… What way, then, (I ask again) can we take, that our money may not sink us to the nethermost hell? There is one way, and there is no other under heaven. If those who ‘gain all they can,’ and ‘save all they can,’ will likewise ‘give all they can;’ then, the more they gain, the more they will grow in grace, and the more treasure they will lay up in heaven.”
Find it in Google Books.