Let us hold fast the profession of [our] faith without wavering; (for he [is] faithful that promised (Hebrews 10:23) Here the author calls us to hold fast. We must remain strong in the faith! However, our strength comes from our merciful Father alone; for He has promised to be faithful to us. God has promised to never leave nor forsake us (Hebrews 13:5) and as we hold fast to the faith, He will strengthen our hands. BLB