What is the context?
These words come at the end of Jesus' instructions about a brother who sins. In verses 15–18, He has described private correction, one or two witnesses, bringing the matter to the church, and binding and loosing. The repeated two-or-three language connects this assurance with the community's difficult work of seeking restoration.
Jesus speaks of agreement in what His followers ask and of His presence when they gather in His name. The surrounding teaching joins prayer, responsibility, and care for one another. Peter then asks how often to forgive a brother who sins against him.
How is this passage commonly understood?
Readers differ over how closely to limit these sayings to church correction. One reading keeps the two or three with the witnesses and decisions in verses 15–18, seeing Jesus reassure those seeking restoration in His name.
Wesley on 18:18–20 understands the promise to include united prayers beyond intercession for someone being restored, and applies Jesus' presence to worship. The US Catholic bishops' notes on 18:19–20 also favor a broader prayer setting because the language about asking is so general. These sources differ over the immediate scope; neither reading requires Jesus to be absent whenever a believer is alone.
Where does this fit in God's plan?
Jesus' presence with His people reaches into the church's whole mission. At the end of Matthew, He sends the disciples to make disciples of all nations and promises to remain with them (Matthew 28:18–20). The community that must undertake difficult restoration is also sent to bring His teaching to others.
Ephesians 2:18–22 describes believers together as God's household and a dwelling for God through His Spirit. His people are being brought into shared life around Christ. Their gathering and care for one another belong within that purpose.
What is our position?
Prayer and Faith understands this assurance within the correction and restoration described in verses 15–18. Agreement refers to the gathered community's work in that setting, and Jesus is present as it acts faithfully in His name.
The study does not treat agreement as a way to guarantee whatever two people request. Their agreement does not make a request God's will. See Prayer and Faith for the full explanation.