And this is the confidence that we have in Him, that if we ask any thing according to His will, He heareth us; and if we know that He hear us, whatsoever we ask, we know that we have the petitions that we desired of Him (1 John 5:14-15).

Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you: For everyone that asketh receiveth; and he that seeketh findeth; and to him that knocketh it shall be opened. Or what man is there of you, whom if his son ask bread, will give him astone? or if he asks for a fish, will give him a serpent? If ye then, being evil, know how to give good gifts unto your children, how much more shall your Father which is in heaven give good gifts to them that ask him? Therefore all things whatsoever ye would that men should do to you, do ye even to them; for this is the law and the prophets(Matthew 7:7-12).

Be careful for nothing;but in everything by prayer and supplication with thanksgiving let your requests be made known unto God (Philippians 4:6). Feed your confidence with the word.
James 4:2
…all of you have not, because all of you ask not. 
John 16:24
Until now have all of you asked nothing in my name: ask, and all of you shall receive, that your joy may be full. 
Psalm 2:8 
Psalms 24:1 
The earth is the Lords, and the fullness thereof; the world, and they that dwell therein. 
•You can ask God for anything in the world as long as it is holy, righteous and good. 
•Remember it is just as important to ask God for things for others as it is to ask God for things for yourself. 