Their land brought forth frogs in abundance, in the chambers of their kings.

Wesley's Notes

105:30 Land - Their country. In chambers - Which entered into the chambers. Kings - Of Pharaoh and his sons, and his chief nobles and governors.

Matthew Henry's Concise Commentary

105:24-45 As the believer commonly thrives best in his soul when under the cross; so the church also flourishes most in true holiness, and increases in number, while under persecution. Yet instruments shall be raised up for their deliverance, and plagues may be expected by persecutors. And see the special care God took of his people in the wilderness. All the benefits bestowed on Israel as a nation, were shadows of spiritual blessings with which we are blessed in Christ Jesus. Having redeemed us with his blood, restored our souls to holiness, and set us at liberty from Satan's bondage, he guides and guards us all the way. He satisfies our souls with the bread of heaven, and the water of life from the Rock of salvation, and will bring us safely to heaven. He redeems his servants from all iniquity, and purifies them unto himself, to be a peculiar people, zealous of good works.