I am sending you out like sheep among wolves. Therefore be as shrewd as snakes and as innocent as doves. Matthew 10:16.
The phrase "devil goes to ends of the earth" is a common idiom, and in a biblical context, it refers to the devil's roaming and influence on earth, as seen in Job 1:7 and Revelation 12:12.
Devil seeking who can devour" comes from 1 Peter 5:8
The thief comes only to steal, kill and destroy; Jesus comes so that we may have life, and have it to the full. John 10:10.
Trey Knowles explains your enemy.