Finally, be strong in the Lord and in his mighty power. Put on the full armor of God, so that you can take your stand against the devil’s schemes. For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms.
God gives us his strength and “armor” to wage spiritual warfare no less. Never against humans.
This is far more important than we normally might think. We tend to evaluate problems in human categories. And actually we can gain knowledge and insight in doing so. And there’s no question that we can offend others. When we do so, we need to go to them and make it right, asking for their forgiveness. But when we have problems with people that are really not our fault, or just seem to be beyond the pale of what fault we have, we need to remember where our struggle lies.
For one thing, this will help us get our focus off the person. The problem does not really lie ultimately with them but with the spiritual entities in the mix behind whatever might be transpiring between us and them. We need to direct our attention against the real foe, which is spiritual.
And we do so in no less than the strength of God’s might, with no less than the armor God gives us in Christ through the gospel. Which of course is why we need to focus on that entire passage (Ephesians 6:10-20). Meditating on it with the view of putting it into practice. In and through Jesus.