“Finally brothers, whatever is true, whatever is honorable, whatever is just, whatever is pure, whatever is lovely, whatever is commendable–if there is any moral excellence and if there is any praise–keep these thoughts in your mind.” Philippians 4:8.
More often than not, sin begins in our heart or in our mind. in this world full of temptation and sinful behavior, we do not need to look far to find things that will lead us astray from God and straight into sin. The challenge for us is to focus our minds daily on God and to not allow ourselves to be swayed into following after our own desires. In other words, the more we think positive thoughts that focus on God, we will be that much more able to resist the temptations of the world–this is the true power of positive thinking. It is only by focusing our hearts and minds on God that we are able to overcome the sinful desires and temptations we are confronted with.
If you desire to be a righteous person, start by thinking righteous thoughts.