input question: Fix spacing: Hiswritingsonthetheoryofsupplyanddemand,madewhileholdingthisoffice,arequiteremarkable.

output answer: His writings on the theory of supply and demand, made while holding this office, are quite remarkable.

input question: Fix spacing: Yourfaithfulnessreachestotheskies.36:6YourrighteousnessislikethemountainsofGod.

output answer: Your faithfulness reaches to the skies. 36:6 Your righteousness is like the mountains of God.

input question: Fix spacing: Acertainmassnumberbelongstoacertainkindofsubstance,thuscannotbetwodifferentsubstanceshavethesamemassnumber.

output answer: A certain mass number belongs to a certain kind of substance, thus can not be two different substances have the same mass number.

input question: Fix spacing: Takearegularbackupinordertoavoiddataloss.Ifyouhavealreadytakenabackupthenitisveryeasytorestorelostdatausingthebackupfile.

output answer:
Take a regular backup in order to avoid data loss. If you have already taken a backup then it is very easy to restore lost data using the backup file.