The Hebrew term ר ֵׁומֹש (shomér), often rendered “keeper,” “guardian,” or “watchman,” carries profound theological and ethical significance within the Hebrew Bible, encompassing personal, communal, and ecological responsibilities. While scholarship has examined its lexical range, little attention has been given to how the translation nuances influence ecological ethics—particularly within Nigerian Christian contexts facing severe environmental degradation. This study addresses that gap by critically analysing shomér in key biblical passages, evaluating English translations (e.g., NIV, ESV, NRSV), and exploring their theological implications for stewardship. The research adopts a qualitative methodology, combining close textual analysis and comparative translation studies. Findings indicate that variations in translation significantly shape theological constructs of stewardship, with some versions emphasizing passive care and others active, relational guardianship. These distinctions have practical implications for framing indigenous Nigerian eco theologies. The study concludes that a linguistically informed understanding of shomér can deepen theological engagement with ecological issues, fostering stewardship models that are both biblically faithful and contextually relevant. The study recommends integrating translation awareness, shomér-based stewardship, and interdisciplinary collaboration in theology and environmental practice.