'Thoughtfully' in the Bible

“As for all these things which you see, the time will come when there will not be one stone left on another that will not be torn down.”

Therefore, holy brothers and sisters, who share in the heavenly calling, [thoughtfully and attentively] consider the Apostle and High Priest whom we confessed [as ours when we accepted Him as Savior], namely, Jesus;

for once he has looked at himself and gone away, he immediately forgets what he looked like.