Proverbs 4:4-7
4 He taught me also, and said unto me, Let thine heart retain my words: keep my commandments, and live.

5 Get wisdom, get understanding: forget it not; neither decline from the words of my mouth.

6 Forsake her not, and she shall preserve thee: love her, and she shall keep thee.

1 Corin. 14:7-10
7 And even things without life giving sound, whether pipe or harp, except they give a distinction in the sounds, how shall it be known what is piped or harped?

8 For if the trumpet give an uncertain sound, who shall prepare himself to the battle?

9 So likewise ye, except ye utter by the tongue words easy to be understood, how shall it be known what is spoken? for ye shall speak into the air.

10 There are, it may be, so many kinds of voices in the world, and none of them is without signification.

Isaiah 40:28
28 Hast thou not known? hast thou not heard, that the everlasting God, the Lord, the Creator of the ends of the earth, fainteth not, neither is weary? there is no searching of his understanding.

29 He giveth power to the faint; and to them that have no might he increaseth strength.

30 Even the youths shall faint and be weary, and the young men shall utterly fall:

31 But they that wait upon the Lord shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; and they shall walk, and not faint.

Hebrews 13:16
16 But to do good and to communicate forget not: for with such sacrifices God is well pleased.