The word of God is more reliable than anything we can ever imagine because God has placed His word above His name. Lets take a look at Joshua, Caleb, Esther, and Paul. What gave them so much courage and belief is God. Abraham too, he, just like the above mentioned, never wavered from the truth and God's Promises to them, even when situation spoke something different.
They had a choice to doubt God and be fearful, leading to their defeat, but they decided to trust God and take Him at His word, with Esther saying "If I Perish I Perish." God was definitely pleased and responded.
Without Faith it is impossible to please God (Hebrews 11:6).
What will you do? will you be defeated or will you hang on to God's word and promises until you see your victory?
Let us be encouraged to be courageous