Need encouragement to persevere? Look in the scriptures. God will provide encouragement to persevere in His word.
Romans 15:4-5 – For whatever was written in earlier times was written for our instruction, so that through perseverance and the encouragement of the Scriptures we might have hope. Now may the God who gives perseverance and encouragement grant you to be of the same mind with one another according to Christ Jesus, (NASB)