You are in error and confusing context with omission — Scripture doesn’t need to restate baptism every time faith is mentioned to prove salvation. Romans 4 and Ephesians 2 already make it clear: salvation is by grace through faith, not of works.
Paul already settled it — we’re saved by grace through faith, not by any act we perform.
Grace and Peace
Acts 17:11 (KJV)
“These were more noble than those in Thessalonica, in that they received the word with all readiness of mind, and searched the scriptures daily, whether those things were so.”
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Nor does Scripture need to restate obedience every time faith is mentioned.