Throughout scriptures names are used to reveal destiny, attitudes, or situations. Names that are change or define character traits that wasn't known or apparent in the view-point of the person mindset of themselves.
In these final verses of John Chapter 1 we conclude that our calling is not without knowing. When we are called, no matter who we are, there is a predefined plan, as well as a defined potential within us, to complete God's perfect purpose.
Eph 2:10 "For we are God’s workmanship, created in Christ Jesus to do good works, which God prepared in advance as our way of life."
Scripture Reference:
John 1:46-51
A few Name Changers:
Abraham Gen 17:6-6
Sarah Gen 17:15-16
Issac Gen 18:12-15, 21:6-7 (Isaac means laughter)
Jacob Gen 35:10-12
3 Hebrew boys & Daniel (The world can change your name but not your God scripted destiny)
Daniel 1:7 "Unto whom the prince of the eunuchs gave names: for he gave unto Daniel (Judge of God) the name of Belteshazzar (Trouble); and to Hananiah(Jah has favored), of Shadrach (Blasted); and to Mishael (who is God), of Meshach (extortioner); and to Azariah (Jah has helped), of Abed-nego (work, like in bondage."
Nathaniel John 1:47
John the Baptist Luke 1:59-63
Peter Matt 16:18-19
Paul (little) Acts 13:7-9 (Jewish name Saul - Desire, grave, ask, loan)