1cor.9:16. Preaching the gospel can be in different form. It could be our behaviour towards our neighbours, our utterances, standing in truth always. By so doing, we will be doing the will of God. In 1 cor.9:16, it says ...'Woe to me, if I do not preach the gospel'. It is a call for everyone. No excursion. Everybody is involved. Do you part in your little form. Children, adults. Male, female => are u doing your part.
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From @damascene