'Think' in the Bible

Therefore, while the promise of entering His rest still remains and is freely offered today, let us fear, in case any one of you may seem to come short of reaching it or think he has come too late.

Just consider and meditate on Him who endured from sinners such bitter hostility against Himself [consider it all in comparison with your trials], so that you will not grow weary and lose heart.

and you have forgotten the divine word of encouragement which is addressed to you as sons,“My son, do not make light of the discipline of the Lord,And do not lose heart and give up when you are corrected by Him;