Romans 14:22

‘The faith which you have, have you to yourself before God. Happy is he does not judge himself in what he approves.'

So Paul completes his argument by urging the strong believers to have their faith which allows them to eat or drink anything in the presence of God as something to be enjoyed in private, and thus not when in wider company when ‘weaker brothers and sisters' may be present. The assumption appears to be that such weaker brothers and sisters would be present at love feasts in most church groups.

‘Happy is he does not judge himself in what he approves.' This is a general principle which holds good in all circumstances. Whatever we approve of should not have a shadow cast upon it by it being something that we would judge as wrong if we thought about it. For if it is the latter it will destroy our happiness. Thus the strong believer will not approve of acts which cause harm to other people. Otherwise he will in the end have to pass judgment on himself for his action. In contrast such thoughtfulness towards others will certainly contribute towards his own happiness. Thus in order to be happy it is necessary to have consideration towards others.