Bible Notes Online - Psalms 129 - ESV
Commentary

Israel's troubles and God's righteousness. There is reference to those who oppose spiritual things, and therefore attack the people of God. Scripture teaches that there is no middle ground; we are either for Him, or against Him.

This set of three; considering past afflictions (Ps 129), through the experience of forgiveness (Ps 130), into real trust and hope in God (Ps 131).

v1-2: Afflictions "from my youth," repeated over many years. This is the testimony of Israel as a people, as well as of the godly individual. But they had not prevailed, although the suffering was real.

v3-4: The Lord Jesus allowed men to mistreat Him; His suffering was equally real. The Lord God is righteous, and sends deliverance; ultimately there will be a demonstration of God's righteous judgment.

v5-7: The test is their attitude to Zion; today, the touchstone is their belief, or otherwise, in Christ. Such that hate Zion will suffer loss (see Esth 6.13); the psalmist prays what God has declared.

v8: The unbelieving miss out on God's blessing. Outside of His promises, there is no reason why He should bless. True believers bless each other.