The most-likely Bible author of Psalm 119:143 is traditionally believed to be King David. This perspective is held by many evangelical Christians who believe in the divine inspiration and authorship of the biblical texts. According to this belief, King David, as a man after God’s own heart, was chosen by God to write many of the psalms found in the book of Psalms, including Psalm 119.

Evangelical Christians attribute the authorship of Psalm 119 to King David based on the superscription found in the text, which attributes the psalm to the “servant of the LORD.” Additionally, David is known for his poetic and musical abilities, making him a likely candidate to have composed such a lengthy and skillfully crafted acrostic poem.

In the evangelical Christian perspective, Psalm 119 is valued for its emphasis on the word of God and the psalmist’s deep love for and devotion to God’s commandments. It is seen as a powerful expression of the believer’s longing for righteousness and a guide for living in accordance with God’s will. As such, the attribution of Psalm 119 to King David carries significant theological and spiritual implications for evangelical Christians.