Read Hebrews 4:1-16
“So let us come boldly to the throne of our gracious God. There we will receive his mercy, and we will find grace to help us when we need it most.” (Hebrews 4:16, NLT)
How should we approach God during this fast? With boldness! Not boldness born out of the arrogance of human reward, rather boldness that comes as the result of a gracious Gods desire to supply His children’s needs. We will need large doses of His grace as we endeavor to die to self and live for Him. Otherwise we set ourselves up for failure resulting in self-condemnation.
Satan would love to thwart us at the onset by reminding us we are unworthy. He will bring up past failures that torment our mind. He will remind us of wrong things we said or did earlier in the day. And he will accuse us of hypocrisy, whispering in our ear wrong motives and secret sin. But I tell you God’s grace is sufficient to deal with any blow Satan brings!
"The devil will try to upset you by accusing you of being unworthy of the blessings that you have received. Simply remain cheerful and do your best to ignore the devil's nagging. If need be even laugh at the absurdity of the situation. Satan, the epitome of sin itself, accuses you of unworthiness! When the devil reminds you of your past, remind him of his future."
Teresa of Avila
Our worth is found in Christ. And we are in Christ because of the grace of God. Satan is threatened by our desire to draw close to God because it means his grip on the souls of men is slipping. Therefore, come boldly before God and ask for the grace you need, and he will give it in large measure.