Had We so wiled, We could have shown them up to thee, and thou shouldst have known them by their marks: but surely thou wilt know them by the tone of their speech! And Allah knows all that ye do. (30)
Tafsir
The hypocrite Muslims were jealous of their pious brethren in religion? The reason was that they felt that all progress made by Islam benefitted sincere Muslims, and this was very distressing to them. They used to wonder why they should sacrifice their lives and property in a campaign which enhanced the position of others, while conferring no greatness on them. The hypocrites hid these inner feelings in their outward behaviour. But this did not remain concealed from people of understanding. Their artificial tone revealed that their connection with Islam was that of outward show and was not in any sense heartfelt.
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