Obadiah sits next to 5 phonetic neighbors — Obediah, Zebediah, and Jedidiah are the closest matches by sound. Most share Obadiah's Hebrew-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"servant of God"
"Harry's son, son of the ruler"
"strong-willed warrior"
"spirit, divine inner power"
"modern invented name"
"shelter, protection"
"selected, chosen one"
"modern invented name"
"of the sea, of the lake"
"victory of the people"
"rare, extraordinary"
"slender, narrow"
"charming, wily"
"pleasantness, delight"
"descendant of Riagán"
"broad valley"
"tailor, cutter of cloth"
"from the heath"
"from Saint Denis"
"from the moon"
"of God, God's own"
Similar sound: These names share phonetic patterns with Obadiah — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Obadiah.
Rhythm: Obadiah is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.