G3874–παράκλησις–paraklēsis

that by two immutable things, in which it is impossible for God to lie, we may have a strong encouragement, who have fled for refuge to take hold of the hope set before us.

παράκλησιν paraklēsin “encouragement”

and you have forgotten the exhortation which reasons with you as with children, "My son, don't take lightly the chastening of the Lord, Nor faint when you are reproved by him;

παρακλήσεως paraklēseōs “exhortation”

But I exhort you, brothers, endure the word of exhortation, for I have written to you in few words.

παρακλήσεως· paraklēseōs “of exhortation;”