So then, banish anxiety from your heart and cast off the troubles of your body, for youth and vigor are meaningless. (NIV)
Therefore remove [the lusts that end in] sorrow and vexation from your heart and mind and put away evil from your body, for youth and the dawn of life are vanity [transitory, idle, empty, and devoid of truth]. [II Cor. 7:1; II Tim. 2:22.] (AMP)
Therefore remove sorrow from thy heart, and put away evil from thy flesh: for childhood and youth are vanity. (KJV)