Hi SBA0905 Welcome to Worthy
Good question.....We need to have knowledge of the enemy (Eph Ch:6)....(God alone knows the hearts of men, 1Kings 8:39)...the enemy can put thoughts in, (get thee behind me satan Matt 16:23)...So we need to (take captive our thoughts 2 Cor 10:5)... and (guard our tongues James 3:) ......The enemy can see your weaknesses..he (walks about seeking who he can devour, 1 Peter 5:8) he is trying to defile you by planting thoughts ( things which come out of you are what defile you , Mark 7:15)...So (resist the enemy and he shall flee James 4:7)....
God bless