No battle was ever won by giving up.
Never give in to despair.
Persevere in all things.
Gal 6:9 And let us not be weary in well doing: for in due season we shall reap, if we faint not.
Matt 24:13 But he that shall endure unto the end, the same shall be saved.
John 8:31-32 Then said Jesus to those Jews which believed on him, If ye continue in my word, then are ye my disciples indeed; 32 And ye shall know the truth, and the truth shall make you free.
John 15:9 As the Father hath loved me, so have I loved you: continue ye in my love.