The other half of Joshua's warnings refers to the penalties of the broken vows. These are put with extraordinary force. The declaration that the sins of the servants of God would not be forgiven is not, of course, to be taken so as to contradict the whole teaching of Scripture, but as meaning that the sins of His people cannot be left unpunished. The closer relation between God and them made retribution certain. The law of Israel's existence, which its history ever since has exemplified, was here laid down, that their prosperity depended on their allegiance, and that their nearness to Him ensured His chastisement for their sin. 'You only have I known of all the families of the earth: therefore I will punish you for all your iniquities.' The remainder of the incident must be briefly disposed of. These warnings produced the desired effect; for Joshua did not seek to prevent, but to make more intelligent and firm, the people's allegiance. The resolve, repeated after fuller knowledge, is the best reward, as it is the earnest hope, of the faithful teacher, whose apparent discouragements are meant to purify and deepen, not to repress, the faintest wish to serve God. Having tested their sincerity, he calls them to witness that their resolution is perfectly voluntary; and, on their endorsing it as their free choice, he requires the putting away of their 'strange gods,' and the surrender of their inward selves to Him who, by this their action as well as by His benefits, becomes in truth 'the God of Israel.' Attempts have been made to evade the implication that idolatry had crept in among the people; but there can be no doubt of the plain, sad meaning of the words. They are a quotation of Jacob's, at the same spot, on a similar occasion centuries before. If there were no idols buried now under the old oak, it was not because there were none in Israel, but because they had not been brought by the people from their homes. Joshua's commands are the practical outcome of his previous words. If God be 'holy' and 'jealous,' serving Him must demand the forsaking of all other gods, and the surrender of heart and self to Him. That is as true to-day as ever it was. The people accept the stringent requirement, and their repeated shout of obedience has a deeper tone than their first hasty utterance had. They have learned what service means,--that it includes more than ceremonies; and they are willing to obey His voice. Blessed those for whom the plain disclosure of all that they must give up to follow Him, only leads to the more assured and hearty response of willing surrender!