# one of them

Possible meanings are 1) one of the soldiers or 2) one of those who stood by and watched.

# sponge

This is a sea animal that is harvested and used to take up and hold liquids. These liquids can later be pushed out.

# gave it to him

"gave it to Jesus"

# gave up his spirit

Here "spirit" refers to that which gives life to a person. This phrase is a way of saying that Jesus died. AT: "he died, giving his spirit over to God" or "he breathed his last breath" (See: [[rc://en/ta/man/translate/figs-euphemism]])