Here's a hymn I haven't sung in a long time: "Give of Your Best to the Master"
The first verse refers to Jesus as "dauntless, young, and brave." I always thought that was slightly strange, but the anonymous author of the Medieval poem, "The Dream of the Rood," agrees with Howard B. Grose, author of the hymn words, for the Medieval poet refers to Jesus at the crucifixion as "the young hero."
Here is the last verse of the hymn, and in my opinion, the best:
Give of your best to the Master,
Nought else is worthy His love;
He gave Himself for your ransom,
Gave up His glory above:
Laid down His life without murmur,
You from sin's ruin to save;
Give Him your heart's adoration,
Give Him the best that you have.
Give of your best to the Master
Give of the strength of your youth;
Clad in salvation's full armor,
Join in the battle for truth.
The tune is here. (Click on the piano midi link. Plays the first part of the verse twice, presumably once as an introduction.)
Just across the page in my hymnal is the less great but still very good hymn with the convicting title "I Wonder Have I Done My Best for Jesus."