Ephesians 6 tells us that our battle is not against flesh and blood. This oftentimes gets misunderstood as meaning there is an internal struggle against sin that all people must overcome in order to live holy lives.
I agree that we want to live lives aligned with how God created us. However, the powers, principalities, rulers, authorities, “cosmic powers” (or whatever you want to call them) are the opposition that Paul refers to. These are real “intangible” beings that stand in rebellion against Creator God.
As Jesus died on the cross, it became clear that the intangible powers of evil were about to be disarmed and put to shame (as in Colossians 2). This does not mean that the rebellious spiritual entities are non-factors. On the contrary, they still resist God’s redemptive plan through tactics like deception, fear, and manipulation. However, they remain disarmed without the ability to impose their will on the children of God unless God’s children choose to be align themselves with the enemy instead of their Creator.
Of course, we still experience the effects of sin in the world, get tempted by evil, and “feel” as if we are in opposition to other people. That is why it is important for us to remember that our battle is against the intangible enemies of God who do their best to make it seem as though Christ Jesus did not already pay for victory.
As we remember Christ’s death and resurrection, let us stay mindful of where the current struggle lies, that the real enemies are disarmed, and that we can confidently spread the message of God’s redemptive plan through Christ Jesus.