'Rendered' in the Bible

For Christ did not send me [as an apostle] to baptize, but [commissioned and empowered me] to preach the good news [of salvation]—not with clever and eloquent speech [as an orator], so that the cross of Christ would not be made ineffective [deprived of its saving power].

Now concerning the virgins [of marriageable age] I have no command of the Lord, but I give my opinion as one who by the Lord’s mercy is trustworthy.