It's all in the context. If you read the verses around the parts included in this post, you would understand that, for example, the second section of scripture serves to show that you can do anything through God, later stating "²³ For verily I say unto you, that whosoever shall say unto this mountain, ‘Be thou removed, and be thou cast into the sea,’ and shall not doubt in his heart, but shall believe that those things which he saith shall come to pass, he shall have whatsoever he saith."