The Insanity of Luther: The Holiness of God with R.C. Sproul – Part 4

This is the fourth session of R.C. Sproul’s series of sermons on the holiness of God.

“And the four beasts had each of them six wings about Him; and they were full of eyes within: and they rest not day and night, saying, Holy, holy, holy, Lord God Almighty, which was, and is, and is to come.”

Revelation 4:8 KJV

A Mighty Fortress is Our God

“The LORD is my rock, and my fortress, and my deliverer; my God, my strength, in whom I will trust; my buckler, and the horn of my salvation, and my high tower.” (Psalm 18:2)

– Lyrics –


  1. A mighty fortress is our God, a bulwark never failing;
    Our helper He, amid the flood of mortal ills prevailing:
    For still our ancient foe doth seek to work us woe;
    His craft and pow’r are great, and, armed with cruel hate,
    On earth is not his equal.
  2. Did we in our own strength confide, our striving would be losing,
    Were not the right Man on our side, the Man of God’s own choosing:
    Dost ask who that may be? Christ Jesus, it is He;
    Lord Sabaoth, His Name, from age to age the same,
    And He must win the battle.
  3. And though this world, with devils filled, should threaten to undo us,
    We will not fear, for God hath willed His truth to triumph through us;
    The Prince of Darkness grim, we tremble not for him;
    His rage we can endure, for lo, his doom is sure,
    One little word shall fell him.
  4. That word above all earthly pow’rs, no thanks to them, abideth;
    The Spirit and the gifts are ours through Him Who with us sideth;
    Let goods and kindred go, this mortal life also;
    The body they may kill: God’s truth abideth still,
    His kingdom is forever.

          – Martin Luther 

(Lyrics from TimelessTruths.com)

Movie Monday: “Martin Luther” (1953)

10 Finally, my brethren, be strong in the Lord, and in the power of His might.

11 Put on the whole armour of God, that ye may be able to stand against the wiles of the devil.

12 For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places.

13 Wherefore take unto you the whole armour of God, that ye may be able to withstand in the evil day, and having done all, to stand.

14 Stand therefore, having your loins girt about with truth, and having on the breastplate of righteousness;

15 And your feet shod with the preparation of the gospel of peace;

16 Above all, taking the shield of faith, wherewith ye shall be able to quench all the fiery darts of the wicked.

17 And take the helmet of salvation, and the sword of the Spirit, which is the word of God:

18 Praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints;

19 And for me, that utterance may be given unto me, that I may open my mouth boldly, to make known the mystery of the gospel,

20 For which I am an ambassador in bonds: that therein I may speak boldly, as I ought to speak.

– Ephesians 6:10-20

‘A Mighty Fortress Is Our God’ Sung By Christians All Around the World!

It’s always an encouragement to see Christians mixing their voices together to sing praises to our Lord and Savior Jesus Christ! Please enjoy this amazing rendition of the beloved hymn by Martin Luther, A Mighty Fortress, sung by a virtual choir consisting of participants all around the globe.

“The LORD is my rock, and my fortress, and my deliverer; my God, my strength, in whom I will trust; my buckler, and the horn of my salvation, and my high tower.” (Psalm 18:2)

“God is our refuge and strength, a very present help in trouble.” (Psalm 46:1)

The lyrics:

A mighty fortress is our God, a bulwark never failing;
Our helper He, amid the flood of mortal ills prevailing:
For still our ancient foe doth seek to work us woe;
His craft and pow’r are great, and, armed with cruel hate,
On earth is not his equal.

Did we in our own strength confide, our striving would be losing,
Were not the right Man on our side, the Man of God’s own choosing:
Dost ask who that may be? Christ Jesus, it is He;
Lord Sabaoth, His Name, from age to age the same,
And He must win the battle.

And though this world, with devils filled, should threaten to undo us,
We will not fear, for God hath willed His truth to triumph through us;
The Prince of Darkness grim, we tremble not for him;
His rage we can endure, for lo, his doom is sure,
One little word shall fell him.

That word above all earthly pow’rs, no thanks to them, abideth;
The Spirit and the gifts are ours through Him Who with us sideth;
Let goods and kindred go, this mortal life also;
The body they may kill: God’s truth abideth still,
His kingdom is forever.

(Lyrics taken from Timeless Truths.)