G3874–παράκλησις–paraklēsis

So that we, who have gone in flight from danger to the hope which has been put before us, may have a strong comfort in two unchanging things, in which it is not possible for God to be false;

παράκλησιν paraklēsin “encouragement”

And you have not kept in mind the word which says to you as to sons, My son, do not make little of the Lord's punishment, and do not give up hope when you are judged by him;

παρακλήσεως paraklēseōs “exhortation”

But, brothers, take kindly the words which I have said for your profit; for I have not sent you a long letter.

παρακλήσεως· paraklēseōs “of exhortation;”