# Jehonadab son of Rekab

This is the name of a man. 

# Is your heart with me, as my heart is with yours? ... "It is."

"Will you be loyal to me, as I will be loyal to you? ... 'I will.'" 

# If it is, give me your hand

"If so, put your hand in mine" or "If so, let us shake hands". This confirms their agreement.