In verse 1 we are told that they are those who are eagerly and enthusiastically plotting out their evil. As they lay in bed they daydream about their schemes and efforts. At the first crack of dawn, they leap from their beds to enact their plans. These are people who are thrilled by their evil desires and with the “power of their hand” have the ability to carry it out. So these aren’t just people with plans but the power, money, status, and connections to carry out that desire.
