For the kingdom is the Lord's: and he is the governor among the nations. - Psalm 22:28
Strong's Concordance defines "governor" as "one who rules or reigns; one to whom is given power and authority." Yep, that's our Lord. He rules. He reigns on high. He has all power and authority. The Bible makes this abundantly clear.
For as the Father hath life in himself; so hath he given to the Son to have life in himself; and hath given him authority to execute judgment also, because he is the Son of man. - John 5:27
And hath put all [things] under his feet, and gave him [to be] the head over all [things] to the church, which is his body, the fulness of him that filleth all in all. - Ephesians 1:22-23
So, how does this affect us? In what ways can we find comfort in the fact that God is the Governor of nations? For me, it brings peace when I think of all the turmoil in our world. Wars and rumors of wars—yes, we're living in the last days. Peace on earth seems like wishful thinking. But no matter how chaotic things may appear, we can trust that God is in charge, and one day, everyone will answer to Him. He has the final say. He always has and always will reign supreme.