Am I a Soldier of the Cross?

Here's a piercing hymn by Isaac Watts:

Am I a soldier of the cross,
A follower of the Lamb,
And shall I fear to own His cause,
Or blush to speak His Name?

Must I be carried to the skies
On flowery beds of ease,
While others fought to win the prize,
And sailed through bloody seas?

Are there no foes for me to face?
Must I not stem the flood?
Is this vile world a friend to grace,
To help me on to God?

Sure I must fight if I would reign;
Increase my courage, Lord.
I’ll bear the toil, endure the pain,
Supported by Thy Word.