"A Testament of Prophetic Dominion: The Tree Must Dry" by Ameinyi Daniel Walter recounts his early spiritual experiences in Port Harcourt, Nigeria, culminating in the miraculous withering of a troublesome Iroko tree after his prayer. This event in 2016 forms the basis for Walter's exploration of "prophetic dominion"—the belief that believers can influence the natural world through prayer and alignment with God's will.

Walter emphasizes his formative years as a devoted "church boy," where consistent prayer became a period of divine preparation. The subsequent formation of a unified prayer group created an environment for divine encounters. The persistent issue of the Iroko tree became the focus of their "prophetic litigation," where they presented their case to God using scripture.

A pivotal dream affirmed their prayers, preceding the tree's withering within two weeks. This tangible result illustrated prophetic dominion: speaking in alignment with God's will can yield supernatural outcomes in the natural realm.

The book delves into principles of prophetic ministry, highlighting that prophetic speech is a powerful articulation of divine alignment. Drawing biblical parallels, Walter argues that a yielded prophetic voice carries the authority to decree God's purposes. He extracts lessons from the dried tree, emphasizing God's stance against unfruitfulness, creation's responsiveness to God's voice through believers, and the necessity of obedience.

Walter also addresses "the danger of silent prophets," urging boldness in speaking truth and cautioning against silence in the face of wrong. He stresses the prophetic responsibility to be vigilant and vocal.

Furthermore, the book explores "the making of a voice," emphasizing that prophetic authority is often forged through solitude, trials, and deep personal encounters with God. Using biblical examples, Walter underscores the need for burden-bearing, intercession, and purification in developing an authentic prophetic voice, cautioning against seeking prominence without genuine spiritual formation.

Ultimately, "A Testament of Prophetic Dominion" is a call to believers to recognize and activate their prophetic potential. Walter's personal testimony illustrates how consistent prayer, obedience, and speaking in alignment with God's purposes can lead to tangible supernatural manifestations, demonstrating that when believers yield their voices to the Holy Spirit, they possess the power to bring about real change, where even "the tree must dry" according to God's will.