What does Caleb mean?
Meaning genuinely contested. Traditionally derived from keleb, 'dog' (connoting a humble, devoted servant). Others split it as kol + lev, 'whole heart,' giving 'wholehearted' — a reading that suits the loyal spy of Numbers 13-14. Because the name shares the consonants k-l-b with 'dog,' that older reading cannot be cleanly ruled out; treat both as open.
What does Isaiah mean?
Isaiah comes from the Hebrew Yeshayahu, “Yahweh is salvation.” He was one of the greatest Old Testament prophets, widely quoted in the New Testament.