Hymns from my childhood: "I Know Whom I Have Believed"

I just happened to come across the Bible verse this morning on which this song is based, II Timothy 1:12.  It brought to my mind a song I loved as a child, another hymn nobody ever sings any more.  I looked at three or four renditions on YouTube, including one by the Sons of the Pioneers that I was going to use.  Then I found this one.  We didn't clap our hands to the music in church when I was growing up, but this particular clip made me smile, and it's the one I decided I liked best.  It's sung by a church in Northern Ireland.  

 

1. I know not why God’s wondrous grace
   To me He hath made known,
   Nor why, unworthy, Christ in love
   Redeemed me for His own.
   • Refrain:
     But “I know Whom I have believed,
     And am persuaded that He is able
     To keep that which I’ve committed
     Unto Him against that day.”
2. I know not how this saving faith
   To me He did impart,
   Nor how believing in His Word
   Wrought peace within my heart.
3. I know not how the Spirit moves,
   Convincing men of sin,
   Revealing Jesus through the Word,
   Creating faith in Him.
4. I know not what of good or ill
   May be reserved for me,
   Of weary ways or golden days,
   Before His face I see.
5. I know not when my Lord may come,
   At night or noonday fair,
   Nor if I walk the vale with Him,
   Or meet Him in the air.