Keep your main focus on what?

It's better to light one bright candle so to speak than to spend all of one's time cursin' away like a rogue sailor at the darkness ...that somehow grew gobs darker with time.

Been looking at...

But when anything is exposed by the light, it becomes visible.. Ephesians 5:13

The light shines in the darkness, and the darkness has not overcome it. John 1:5

Take no part in the unfruitful works of darkness, but instead expose them. Ephesians 5:11

Woe to those who call evil good and good evil, who put darkness for light and light for darkness.. Isaiah 5:20

For we do not wrestle against flesh and blood, but against the rulers, against the authorities, against the cosmic powers over this present darkness, against the spiritual forces of evil in the heavenly places. Ephesians 6:12

As for those who persist in sin, rebuke them in the presence of all... 1 Timothy 5:20

Abstain from every form of evil. 1 Thessalonians 5:22

Let love be genuine. Abhor what is evil; hold fast to what is good...Do not be overcome by evil, but overcome evil with good. Romans 12:9 & 12

But test everything; hold fast what is good. Abstain from every form of evil. 1 Thessalonians 5:21-22

Take no part in the unfruitful works of darkness, but instead expose them. Ephesians 5:11 (See each context).

Expose the evil, but daily keep your main focus on Christ.

O you who love the Lord, hate evil.. Psalm 97:10

Turn away from evil and do good; seek peace and pursue it. Psalm 34:14 

Keep your main focus on Christ the living Word.