Who are you fighting?
Intro:
Here the apostle looks at the Christian’s responsibility of living in the world from a broader, that is, cosmic perspective. The moral issues with which he deals are not simply matters of personal preference, as many within our contemporary and postmodern world contend. On the contrary, they are essential elements in a larger struggle between the forces of good and evil.
13 When you heard the message of truth, the gospel of your salvation, and when you believed in Him, you were also sealed with the promised Holy Spirit.
Finally there is the sword of the Spirit. The Old Testament often refers to speech as a sword. The words of the wicked are said to wound as a sword (e.g. Pss 57:4; 64:3). But in the Bible God’s own word is also as a sword in his hand, a sword that lays bare, separating the false from the true (Heb. 4:12), bringing judgment (Isa. 11:4; Hos. 6:5) but also bringing salvation.