The current study establishes the reliability of the Holy Qur'an as one of the earliest treatise on language acquisition by humans. This is not to say that it is a scientific treatise: Rather what we know as modern 'knowledge' finds mention in a book much older. This applies to many aspects of human life, whether they spring from scientific inquiry or social, political or linguistic facts. Children acquire language fast and efficiently. They become masters and handle the complexities of human language. This paper seeks to examine, on a Qur'an ic and practical level, the first language learning and its various processes, finding parallels between the language learning process and Qur'an ic verses on language. The study employed a qualitative research design. The process of language acquisition varies from the phase of language learning. This article explores the stages of children's language learning and the methods for analysis used in the linguistic development study by linguists, scientists, and psychologists. This paper explicitly demonstrates that children are inherent in their mother tongue. When the children start acquiring their mother tongue, they learn the grammar, phonological, morphological, syntactic, and semantic rules. No one teaches these rules, but they are pre-programmed with innate capacity, a gift from Allah.