In conclusion, be strong in the Lord [be empowered through your union with Him]; draw your strength from Him [that strength which His boundless might provides].
In the Lord is where a believer can find all the strength they need. Strength to face and overcome any challenge in life. It didn’t say be strong in yourself, but in the Lord. In Ephesians 6 it goes on to tell us to put on the whole armor of God so we can be strong and stand against our enemy. It begins with the belt of truth. Surround yourself with the truth of God’s Word. Go to His Word everyday. Next put on the breastplate of righteousness. Recognize your right-standing with God is a gift you have already been given. Be sure to shod your feet with the gospel of peace. We have been given the peace of God for Jesus left His peace with us, therefore be anxious about nothing but through prayer release every care to God and walk in peace. Take up the shield of faith by continually hearing the Word preached for faith comes by hearing the Word of God. Next use the helmet of salvation by keeping your thoughts in line with the Word of God. Finally take the sword of the Spirit, which is speaking God’s Word especially when circumstances come against you, declare what God has said and therefore use your sword to change those circumstances. We have been given all we need to be strong in the Lord, it is up to us to use the armor we have been given.