Main message: Personal evangelism - preaching the gospel to win some souls.

Bible references:

• V1. "win that soul for thee" (Proverbs 11:30)

"love that soul through me" (2 Corinthians 5:14)

• V2. "lead some soul" (Luke 19:10)

"Power" (Acts 1:8)(2 Timothy 1:7)

"That soul... Thee" (1 Corinthians 9:22)

• V3. "Win... prayer" (Matthew 28:19-20)(Colossians 4:2-3)

"great white throne" (Revelations 20:11-15)

• Chorus: "some soul for Thee" (Romans 10:1)

"highway" (Romans 3:5-8)

Keywords: Lord, lay, soul, heart, love, bravely, win/soul, "some soul for Thee", "earnest plea", Life's highway, lead me, power, constant prayer, great white throne

Interpretation notes:

• The hymn uses stepwise motion within a narrow six-note range and a steady half–quarter–half–quarter rhythm. 

• Musical lines are repeated, supporting the meditative text. 

• In the refrain, 'Some soul for Thee' is set to higher notes and repeated twice. 

• The harmony follows a steady I–IV–V progression, with accidentals adding color on phrases such as 'constant prayer,' 'do MY part,' 'TO win,' 'earnest,' and 'on life's highway.' 

• The last line, 'on LIFE'S highway,' uses the largest melodic leap in the hymn, a major sixth.