Allah, the Wise, sent Prophets and Messengers to convey the message of Allah; the purpose of this life, the sets of rules to be lived by and the underlying consequences.
All the Prophets and Messengers were supported by Miracles to substantiate their true claim of Prophethood. The sound mind concludes the truthfulness of the one who claims to be a Prophet when he performs a miracle that others cannot imitate on the grounds of challenging his truthfulness.
Allah, the Exalted, chose the choicest among the men to be Prophets and Messengers. The Wisdom of Allah entailed that all the Prophets and Messengers would be attributed with befitting attributes that enforce their credibility so that they may successfully convey the message from Him. Hence, all the Prophets and Messengers, before and after Prophethood, are trustworthy, truthful, intelligent, beautiful in shape, have beautiful voices, impeccable from committing blasphemy and enormous sins and small mean sins, clear from being inflicted with repelling ailments, clear from vileness, clear from stupidity, clear from lying, clear from cheating and clear from all non befitting attributes.
This beautiful application is learning step for the children to have clear idea about the Messengers of Allah and some brief concepts about the duties of all the Messengers. May Allah give us all the tawfeeq to turn to Him for all our needs and may He fulfill all our lawful needs of this world and the Hereafter. Ameen