Isaiah 44:26-28 gives examples of God fulfilling his word through prophets and Cyrus — concrete cases of the principle.

Isaiah 45:23 repeats the 'word that shall not return' and connects it to universal homage — reinforcing the invincible word.

In Isaiah 46:10, God declares His counsel stands and He accomplishes His purpose — the same certainty echoed in the word not returning empty.

In Isaiah 40:8, God's word stands forever — a direct reinforcement of the permanence and effectiveness of His word in 55:11.

Isaiah 53:10 shows the Servant through whom God's purpose prospers — a specific fulfillment of the word accomplishing its mission.

Isaiah 61:11 uses the same agricultural imagery — righteousness sprouting up — showing the word's success in bringing salvation.

In Isaiah 54:9, God's oath to Noah shows His faithful word; here, God's word is guaranteed to accomplish its purpose. Both affirm divine reliability.

In John 6:63, Jesus declares his words are spirit and life — directly echoing the life-giving power of God's word that never returns empty.

1 Peter 1:23 describes being born again through the living and abiding word — the word accomplishing its regenerating work.

James 1:18 says God brought us forth by the word of truth — fulfilling the word's purpose of new birth.

Hebrews 6:7 uses rain and crop — exactly the metaphor of Isaiah 55:10-11 — to show land responding to God's word.

1 Thessalonians 2:13 says the word is at work in believers — a direct example of God's word not returning empty.

In Ephesians 1:9-11, God's purpose is worked out in Christ — a NT expansion of the same divine efficacious word accomplishing His will.

1 Corinthians 3:6-9 uses planting/watering to show God gives growth — mirroring God's word succeeding as He sends it.

1 Corinthians 1:18 calls the word of the cross 'the power of God' to those being saved — illustrating the word's effective purpose.

Romans 10:17 shows the word's purpose: faith comes by hearing Christ's word — exactly the accomplishment Isaiah promises.

In Luke 8:11-16, the parable of the sower explains the seed as God's word, which produces fruit—mirroring the promise here that God's word will accomplish its purpose.

In Matthew 24:35, Jesus declares His words will not pass away, echoing the enduring, effective nature of God's word as stated here.

In Deuteronomy 32:2, Moses likens his teaching to rain and dew; here God's word is compared to rain that accomplishes its mission. Both use rain as a metaphor for divine speech.

Romans 9:6 directly states that God's word has not failed, echoing Isaiah's assurance of its effectiveness.

Acts 19:20 shows the word's growth and power, fulfilling Isaiah's promise that God's word accomplishes its purpose.

Acts 5:14 reports multitudes added to the Lord through the preached word — a New Testament example of God's word achieving its saving purpose.

Hebrews 4:12 describes God's word as living and active, directly expanding on its power to accomplish.

Ezekiel 24:14 declares God's spoken word will come to pass without relenting — an emphatic parallel to the irreversible success of God's word.

Ezekiel 12:25 explicitly states God's spoken word will be performed without delay — a direct parallel to the certainty of God's word in Isaiah 55:11.

In Genesis 1:12, God's creative word produces exactly what He commanded — a prime example of His word accomplishing its purpose.