[Grammar] give over my body to hardship "that" I may boast

[sitifan]

If I give all I possess to the poor and give over my body to hardship that I may boast, but do not have love, I gain nothing.
https://biblehub.com/1_corinthians/13-3.htm
In the above verse, is "that" a relative pronoun?

 

[Phaedrus]

If I give all I possess to the poor and give over my body to hardship that I may boast, but do not have love, I gain nothing.
https://biblehub.com/1_corinthians/13-3.htm
In the above verse, is "that" a relative pronoun?

I read "that I may boast" there as equivalent to "in order that I may boast." It's not a relative clause but a purpose clause (cf. "in order to boast").