Some Scripture-Digging Tips
Learn the dynamics.
Look at the nationalities of the enemies listed by name in verse 19. See what you can find about their history with the people of God.
Dog-ear encyclopedias.
In chapters like these, Bible dictionaries, historical records, and encyclopedias can provide incredibly helpful insight.
The Technicalities
I wonder if the Hebrews walked around knowing what their names meant or if they are like ours, where there is a meaning to discover if you look to find it.