THE OPPORTUNITY OF GODLY LIVING

Verse 3 reverses the common thought that foreigners and the impaired had no business in God’s house. Let not the foreigner who has joined himself to the Lord say, "The Lord will surely separate me from His people." Nor let the eunuch say, "Behold, I am a dry tree."

Even foreigners (14:1) and eunuchs are not only welcome to join themselves to the Lord, but will participate in the eternal blessings of salvation. This contrasts with the exclusion of eunuchs under the Mosaic Law (Deut. 23:1).
God’s new covenant of grace offers one and all the opportunity for dignity and worth, for life and fruitfulness. Whatever your race, social position, work, or financial situation, God’s blessings are as much for you as for anyone else. No one is excluded from the opportunity to respond to God’s grace.

The Lord explains in verse 4 why those accustomed to thinking themselves outcasts can now hope. For thus says the Lord, "To the eunuchs who keep My Sabbaths, and choose what pleases Me, and hold fast My covenant,

Keeping the Sabbaths and obeying God’s covenant stipulations ( Isa. 56:6) would demonstrate their loyalty to the Lord (1-2). Holding fast My covenant means keeping the agreement of faith in the promises and obedience to the principles of God.
Notice the personal pronouns: My Sabbaths, please Me, My covenant. Their life and behavior results because of their personal relationship with God. He is their focus.
Who is pleasing to God? Those who carry the pedigree of Abraham or the heritage of religion? No! It is those who have entered into covenant with God and have a living relationship with Him. Those who are becoming like Him are truly children of God. It is not genealogy but character that marks the servants of God.

Verse 5 is another promise of future blessing to those who live life out or their personal relationship with God. To them I will give in My house and within My walls a memorial. And a name better than that of sons and daughters; I will give them an everlasting name which will not be cut off.

They may think they have no legacy in the Lord since they have no sons and daughters which indicate earthly productivity. Shockingly though they will be memorialized forever. Those faithful to the Lord will be given a name which will not be cut off. Their legacy of faith rests with the Lord, not in their bloodline.

III. PROMISES TO THE FAITHFUL, 6-8.

Verse 6 proclaims those not out of Israel would become part of the Lord. "Also the foreigners who join themselves to the Lord, to minister to Him, and to love the name of the Lord, to be His servants, every one who keeps from profaning the Sabbaths and holds fast My covenant;

The people God memorializes are given three characteristics. First, they joined themselves to the Lord. The reason they have joined themselves to the Lord is: to minister to Him, to love His name and to be His servants. They join themselves to the Lord first and foremost to bless Him (which opens the way for God to eternally bless them). [To love the name of the Lord is to love His character and respond to His Word and work.] All these actions come from relationship (joined themselves to the Lord) and become the means of developing intimate relationship.
The second reason is because they demonstrate the closeness of their relationship