520BC Zechariah, Buddah and Confucius

It would appear that in 520BC Zechariah, Buddah and Confucius were all engaged in their work. Which one brought people back to God? Zech 1:3

It would appear that in 520BC Zechariah, Buddah and Confucius were all engaged in their work.  Which one brought people back to God?  Who said ‘Thus saith the LORD of hosts; Turn ye unto me, saith the LORD of hosts, and I will turn unto you’ (Zech 1:3).  Who had an idea of God’s standard (the measuring line) Zech. 2?  Who saw a man’s filthy garments changed to festival robes (Zech 3 – Darby trans. – from our own righteousness to God’s)? And which could speak of the sons of oil (Zech 4 – the limitless supply from God’s Holy Spirit)?

These two wise men from the East were no more than that – giving good advice – but none changing the man which cannot be improved, however much men try!