Knowing we will reap what we sow, Solomon encourages us to diligently and faithfully sow things that will last into eternity rather than wasting time on things that will not last. He also cautions us to sow wholeheartedly in the prescribed way so that we can get the full reward of our labors. In this passage he contrasts those who sow correctly with those who sow in the wrong ways. He shows us that if we are faithful to the ways of God we will have joy and strength for the work and enjoy many years of fruitful service. 

Proverbs 10:24-32
24 The fear of the wicked, it shall come upon him: but the desire of the righteous shall be granted. 25 As the whirlwind passeth, so is the wicked no more: but the righteous is an everlasting foundation. 26 As vinegar to the teeth, and as smoke to the eyes, so is the sluggard to them that send him. 

27 The fear of the Lord prolongeth days: but the years of the wicked shall be shortened. 28 The hope of the righteous shall be gladness: but the expectation of the wicked shall perish. 29 The way of the Lord is strength to the upright: but destruction shall be to the workers of iniquity. 30 The righteous shall never be removed: but the wicked shall not inhabit the earth. 

31 The mouth of the just bringeth forth wisdom: but the froward tongue shall be cut out. 32 The lips of the righteous know what is acceptable: but the mouth of the wicked speaketh frowardness.