I might emphasize one or more of the following:
1) God is not a slave to man's desires nor happiness. We cannot manipulate God to obtain what we want; and God could not and would not make promises so that we could.
2) God wants to save us from our sins, make us holy to Him, and redeem us to Himself- and this necessitates that we suffer for the sake of truth and that we trust ourselves to Him in doing well before him even when there is no immediate or short-term reward for doing so placed before us- or even any definite time-table for a reward on earth or even the absolute guarantee of such at all (besides God being with us when we are faithful).
3) Look at ALL of the examples of the righteous people in the Bible. How many were not materially prosperous? And even the ones that were tended to have their prosperity interrupted, diminished, and/or they had other major problems which God did not immediately solve for them before and/or during their prosperity.
4) The health gospel and the wealth gospel are inherently tied together- you cannot believe in one without believing in the other, though many do believe in one and not the other.
5) The ultimate hope of obeying the gospel is an eternal reward in an eternal city not corrupted by sin, and dwelling with God forever in truth and righteousness. No man can serve two masters; we either ultimately seek this or we ultimately seek something else- and that something else is necessarily an idol, whether it be wealth, health, or whatever it is. God could not and would not make promises whereby one could reconcile what we ought to seek with something else-that would simply be humanism and a cross-less gospel- we cannot be promised the best of both worlds; and if we were there would never be a real conflict between gaining the world and not losing your own soul.
6) I think these verses especially expose any and all prosperity gospel teachers for being the dangerous deceivers that they actually are.
Philippians 3:14-21: "14 I press toward the mark for the prize of the high calling of God in Christ Jesus. 15 Let us therefore, as many as be perfect, be thus minded: and if in any thing ye be otherwise minded, God shall reveal even this unto you. 16 Nevertheless, whereto we have already attained, let us walk by the same rule, let us mind the same thing. 17 Brethren, be followers together of me, and mark them which walk so as ye have us for an ensample. 18 (For many walk, of whom I have told you often, and now tell you even weeping, that they are the enemies of the cross of Christ: 19 Whose end is destruction, whose God is their belly, and whose glory is in their shame, who mind earthly things.) 20 For our conversation is in heaven; from whence also we look for the Saviour, the Lord Jesus Christ: 21 Who shall change our vile body, that it may be fashioned like unto his glorious body, according to the working whereby he is able even to subdue all things unto himself."
1 Timothy 6:3-12: "3 If any man teach otherwise, and consent not to wholesome words, even the words of our Lord Jesus Christ, and to the doctrine which is according to godliness; 4 He is proud, knowing nothing, but doting about questions and strifes of words, whereof cometh envy, strife, railings, evil surmisings, 5 Perverse disputings of men of corrupt minds, and destitute of the truth, supposing that gain is godliness: from such withdraw thyself. 6 But godliness with contentment is great gain. 7 For we brought nothing into this world, and it is certain we can carry nothing out.
8 And having food and raiment let us be therewith content. 9 But they that will be rich fall into temptation and a snare, and into many foolish and hurtful lusts, which drown men in destruction and perdition. 10 For the love of money is the root of all evil: which while some coveted after, they have erred from the faith, and pierced themselves through with many sorrows. 11 But thou, O man of God, flee these things; and follow after righteousness, godliness, faith, love, patience, meekness. 12 Fight the good fight of faith, lay hold on eternal life, whereunto thou art also called, and hast professed a good profession before many witnesses."