It is important we examine ourselves today lest any of us should become lost through the deceitfulness of sin. Believers who are totally free from sin and hope to see the Lord on the last day watch, pray, examine and purify themselves in preparedness for the imminent return of our Lord so as to be found worthy to enjoy the promised inheritance of saints in heaven.

Believers should also check themselves if they are still in faith by watching and praying without ceasing because the devil is always at alert seeing the believers who aren't watchful.

Thanks @richi-3