Surah 7. Al-A'raf, Ayah 176

Because his attitudes are influenced only by what his earth-bound desires represent to him as his immediate "advantages" or "disadvantages", the type of man alluded to in this passage is always - whatever the outward circumstances - a prey to a conflict between his reason and his base urges and, thus, to inner disquiet and imaginary fears, and cannot attain to that peace of mind which a believer achieves through his faith.

 Regardless of whether they are warned or not, still they will not believe.

Notice the contrast between the exalted spiritual honours which they would have received from Allah if they had followed His Will, and the earthly desires which eventually bring them low to the position of beasts and worse.

The dog, especially in the hot weather, lolls out his tongue, whether he is attacked and pursued and is tired, or he is left alone. It is part of his nature to slobber. So with the man who rejects Allah. Whether he is warned or left alone, he continues to throw out his dirty saliva. The injury he will do will be to his own soul. But there may be infection in his evil example. So we must protect others. And we must never give up hope of his own amendment. So we must continue to warn him and make him think.