When I'm facing a situation that is seemingly unbearable, I think of these verses:
Romans 8:18 For I reckon that the sufferings of this present time are not worthy to be compared with the glory which shall be revealed in us.
1 Corinthians 2:9 But as it is written, Eye hath not seen, nor ear heard, neither have entered into the heart of man, the things which God hath prepared for them that love him.
2 Corinthians 4:16-18 For which cause we faint not; but though our outward man perish, yet the inward man is renewed day by day. For our light affliction, which is but for a moment, worketh for us a far more exceeding and eternal weight of glory; While we look not at the things which are seen, but at the things which are not seen: for the things which are seen are temporal; but the things which are not seen are eternal.
1 Peter 5:10 But the God of all grace, who hath called us unto his eternal glory by Christ Jesus, after that ye have suffered a while, make you perfect, stablish, strengthen, settle you.
When I am at my lowest and my heart aches I remember that God calls what I am going through a light affliction and I cannot even imagine what God is preparing, but I know it must be beyond magnificent because my heart hurts to the point of breaking.