'Soldier' in the Bible

Immediately the king sent out a soldier of his guard, and commanded to bring John's head, and he went and beheaded him in the prison,

Then the soldiers, when they had crucified Jesus, took his garments and made four parts, to every soldier a part; and also the coat. Now the coat was without seam, woven from the top throughout.

When the angel who spoke to him had departed, Cornelius called two of his household servants and a devout soldier of those who waited on him continually.

When we entered into Rome, the centurion delivered the prisoners to the captain of the guard, but Paul was allowed to stay by himself with the soldier who guarded him.

What soldier ever serves at his own expense? Who plants a vineyard, and doesn't eat of its fruit? Or who feeds a flock, and doesn't drink from the flock's milk?

You therefore must endure hardship, as a good soldier of Christ Jesus.

No soldier on duty entangles himself in the affairs of life, that he may please him who enrolled him as a soldier.