Paul and Barnabas admonished the heathen to turn from “vanities unto the living God.” One cannot trust in the Lord and simultaneously trust in anything else. In order for an individual to be saved, he must repent of trusting in anything other than the Lord. One aspect of repentance involves ceasing to trust vanity and turning one’s faith toward the living and true God. This saving faith needs to become a living faith following salvation. Believers should consistently turn from “vain thoughts” and love the law of God (Psalm 119:113). They should turn from the vain labours that spend their strength for nought (Isaiah 49:4) and be “steadfast . . . in the work of the Lord” knowing that their “labour is not in vain in the Lord” (1 Corinthians 15:58). Additionally, believers should turn from “vain words” (Ephesians 5:6) and hold “forth the word of life” (Philippians 2:16).
The book of Ecclesiastes contains documentation of Solomon’s life experiment apart from God. He examined the worth of subjects involving happiness, wealth, labour, and death. Ultimately, he concluded that life “under the sun” (Ecclesiastes 1:14) was vanity. The word vanity means empty or meaningless. Though Solomon wrote extensively concerning vanity, he was not the only person in the Bible to declare the vanity of life. In fact, Solomon’s father David declared that “every man at his best state is altogether vanity” (Psalm 39:5). King David added that if both men of high and low degree were laid in a balance together, they would be “lighter than vanity” (Psalm 62:9). Thus, regardless of worldly accomplishments and accolades, a life void of God remains meaningless.
Thankfulness strengthens and builds one's faith in the Lord. Christians need more outward and vocal expression of their thankfulness for God's provisions and blessings. Giving of thanks simply exalts the Lord. According to scripture, man can “magnify him [God] with thanksgiving.” Something magnified is made easier to see. Therefore, when men give thanks to the Lord, they make God more visible to a world overcome by sin. For what do you have to be thankful? Try giving God thanks for answered prayers, deliverance from trials, or simply His daily provisions. This thankfulness would help the world to see Him better. Ungrateful Christians have helped to convince the world that it does not need to give God credit for creation (and redemption among other things). Long before these perversions of truth, Christians ceased to give thanks.