2 Corinthians 12:9 ~ The Amplified Bible

 But He said to me, My grace (My favor and loving-kindness and mercy) is enough for you [sufficient against any danger and enables you to bear the trouble manfully]; for My strength and power are made perfect (fulfilled and completed) and show themselves most effective in [your] weakness. Therefore, I will all the more gladly glory in my weaknesses and infirmities, that the strength and power of Christ (the Messiah) may rest (yes, may pitch a tent over and dwell) upon me!

What a Savior we have who knows our weaknesses and steps in when we are ready to step out!  Oh that we can count on Him when we weary.  He told us he knows what it's like to live in this earthly body.  He is compassionate with our sorrows and weaknesses.  Today when you are feeling like you can't take one more step, ask Him to step in.  He surely will, HE IS FAITHFUL!