Cephas sits next to 4 phonetic neighbors — Silas, Cyrus, and Phineas are the closest matches by sound. Most share Cephas's biblical cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"rock, stone"
"tile or clay worker"
"God is gracious"
"perfect joy, supreme happiness"
"place name turned given name"
"yarrow plant"
"wide, broad"
"Gift of God; one who is like God"
"of the mountain"
"listen, hear (Latin)"
"the Lord's house; a place of Christian worship"
"Little saint; diminutive form of Santo"
"Long meadow or clearing in the woods"
"new house, new home"
"industrious ruler"
"island of goats"
Similar sound: These names share phonetic patterns with Cephas — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Aramaic origins, giving them the same cultural heritage as Cephas.
Rhythm: Cephas is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.