97, 103, 105, 108 and 111) to being organized in clusters of two (surahs 81, 91), three (surahs 82, 84, 86, 90, 92) or four verses (surahs 85, 89). Some of these surahs also take on a balanced tripartite structure that begin and conclude with. The major theme of these surahs revolves around presenting to humanity how obvious the existence of God is through the use of oath formulas involving the power of nature in an emphatic tone. We especially see the surahs reference destroyed civilizations, declaring their destruction to be the will of God. A stress is put on God being the creator of Earth and Heaven and everything that lies in between and also His unreachable generosity. In addition, certain surahs generally talk about ethics and values human beings should have, especially the fact that human beings should be humbled by God's power, they should not pursue an extravagant life, be loving and sharing, most particularly with the poorer. Last but not least these surahs contain eschatological prophecies. Although not elaborated as in later surahs, these prophecies appear with a threatening tone to make people generally know about the existence of the Day of Judgement and all that it encompasses (surah 103, 68, etc.), but also, they contain some of the more visual explanations of Heaven. Second Meccan surahs There are 21 surahs in the second Meccan period. These surahs have, on average, ayah between twelve and twenty syllables in length. Some surahs have fewer than fifty ayah, while others, such as surah 20, “Ta-Ha,” have well over 100 verses. These surahs do not necessarily have distinct features, as the surahs of the first and third Meccan periods do, but instead display a blend of features from both earlier and later Meccan surahs. These middle surahs keep and expand upon the tripartite structure of the verse. According to Ernst, surahs that adhere to this structure (common in pre-Islamic Arab poetry) will have shorter first and third sections that parallel each other in scope and audience. The third section will “normally conclude with a flourish.” These parts bookend a somewhat larger middle section, which is “typically a narrative of prophecy and struggle”. These surahs also tend to use fewer oaths than earlier Meccan surahs, but take a much more confrontational approach in regards to the disbelievers. Some surahs in this period adopt a form resembling a monotheistic service, as