Therefore take up the whole armor of God, that you may be able to withstand in the evil day, and having done all, to stand. Ephesians 6:13
The armor of God is our protection from the powers of darkness and their never ending assault on our lives, without which, we would succumb to their attacks. Jesus was and is our example of how to defend ourselves from an enemy, unseen, that comes to rob, kill and destroy!
The evil day is the day you are attacked by the enemy and have to defend yourself against his tactics. Jesus began His ministry, was baptized by John the Baptist, filled with the Holy Spirit and heard His heavenly Father speak to Him in an audible voice that He was indeed His beloved Son! I would say that was a pretty amazing beginning to His ministry on earth. Next, Jesus proceeded to go into the wilderness to fast and pray for forty days and when they had ended He became hungry and the devil approached Him with his first attack, one that is frequently used on new believers and that is doubt!
Knowing Jesus was hungry and weakened physically from His fast, the devil said to Him, "If you are the Son of God, command this stone to become bread." If, you say, was there any doubt who this was, but the enemy has the audacity to try anything in which he can trip us up and gain the victory over us. Jesus knew who He was and to Whom He belonged as most of us do, but many new believers aren't as sure and when their evil day comes they waver in regards to knowing who they are in Christ, and subsequently they fall into the snare of the devil! We would do well to observe the examples left to us by the Lord Jesus and the apostles who all had their evil day and had to learn how to battle the powers of darkness.
For though we walk in the flesh, we do not war according to the flesh. For the weapons of our warfare are not carnal (of the flesh) but mighty in God for pulling down strongholds, casting down arguments and every high and lofty thing that exalts itself against the knowledge of God, bringing every thought into captivity to the obedience of Christ, and being ready to punish all disobedience when your obedience is fulfilled. II Corinthians 10:3-6
Your servant in Christ, Tim Laughlin