"Then Jesus was led by the Spirit into the wilderness to be tempted by the devil." (Matthew 4:1)
Rest assured that once you accomplish something great for God, Satan will counterattack as soon as he can. Now, we should not give Satan power which he does not have. After all, he is a created being, and, as such, has limits on what he can do. That being said, underestimating him is foolhardy and dangerous, especially since he had the audacity to challenge Jesus Christ Himself. In this case, Jesus Christ had just been baptized by John the Baptist. After His act of obedience, He was publically honored by God the Father and God the Holy Spirit.
"...At that moment heaven was opened, and he saw the Spirit of God descending like a dove and alighting on him. And a voice from heaven said, “This is my Son, whom I love; with him I am well pleased.” (Matthew 3:16b-17)
It was right after this that the Holy Spirit led Him out to face the one who tried to usurp His throne. From this event, we learn several things:
1) God will allow temptations and trials into your life in order to strengthen you. Very often, these will occur after you have a wonderful spiritual experience. It's sort of like becoming a UFC champion. Once you win the belt and have your moment of glory, you need to accept the fact that the strongest, fastest, smartest, and most ruthless fighters in your division will be out for your head. In our case, the top contenders will come out of Satan's two training camps: the sinful world and the demonic kingdom. Expect them to come for you after:
A) You get saved.
B) You get baptized.
C) You minister to a friend.
D) God allows a miracle to happen in your life.
Also, unlike a mixed martial arts champion, you don't have the option to lose the belt and fade into obscurity. According to John 10: 27-29, salvation is permanent, so you are going to be in battle for the rest of your life.
2) Satan does not fight fair. Remember, when he came after Jesus, He was alone and starving after having fasted for 40 days. Rest assured that when your life descends into complete chaos, Satan will be choosing his moment to finish you off. He will send your dead-sexy ex-girlfriend back into your life when your marriage is on life support. He will arrange for a new casino to open up in town right after you are appointed Chief Financial Officer of your company. He will send a handsome, understanding older man to "comfort" you when you have lost your father. Criminals will offer their "help" in getting you that government position when your opponent has you against the wall. In the same way that Bane waited until Batman had been run ragged by Gotham City's criminals before he broke his back, so will Satan wait until you have been run ragged before he tries to break yours.
3) Christ will empower you to succeed. He even showed us, through His example, how to use our deadliest weapon against Satan: the Bible.
"For the word of God is alive and active. Sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart." (Hebrews 4:12)
Think the lightsaber was an amazing weapon? Let's see it cut through souls and spirits. Christ answered every temptation that Satan threw at Him with scripture. This is especially amazing, considering that Satan was quoting scripture to make His temptations more appealing. Fortunately, Jesus recognized when it was being taken out of context and would use verses to show what the Bible was really saying. In other words, if you know scripture and use it properly, you will have victory over the enemy. Then, through the power of Christ, you will be able to defeat the devil, as Christ did when He said the following:
"... Away from me, Satan! For it is written: ‘Worship the Lord your God, and serve him only.’” (Matthew 4:10)
