In life and sports and games there's attack and defense and true also in Christian life.
Let's start, as Christians we could be under attack byfears and worries etc. For fears ,our defense for that is faith and trust in our God. For worries we are to seek first the kingdom of God and its righteousness. For those who are tired and weary, our Lord Jesus says to come to Him.
For problems, we are not to turn to worldly ways but to godly ways like prayers, doing good to others, thanking God for blessings, reading the Bible, fellowship with other Christians, share the gospel .etc.
Let's be alert, when we are tempted to do bad things for they are a form of attack. One of the best ways to deal with temptation is to run from it like Joseph one of the sons of Jacob.
When Satan tried to tempt our Lord, Jesus used the words of God or swords of the Spirit. to ward off Satan.
By the way, crucifixion which was thought first to stop Jesus turned out to be Satan's defeat because through the cross our sins are paid for by our Lord Jesus Christ.
Jesus is no longer on the cross but seated on the right hand of God the Father.
These are things we already know, all we have to do is be more consistent with them.
God bless to everyone, specially to those who love the Lord Jesus. For those who want to know more about the Christian life, ask some Christians around you.