How can we trust God with promises?
In what ways can we trust God with our personal promises today?

God’s Faithfulness on Display in Genesis 21:1

• “Now the LORD attended to Sarah as He had said, and the LORD did for Sarah what He had promised.” (Genesis 21:1)

• Twenty-five years after the initial promise, God literally brought a miracle birth to pass.

• The same God who “attended to Sarah” remains unchanged and attentive to His people today (Hebrews 13:8).


The Anchor of God’s Character

• He cannot lie or change His mind—“Does He promise and not fulfill?” (Numbers 23:19).

• His faithfulness is woven into His very nature—“The LORD is trustworthy in all He promises” (Psalm 145:13).

• Because His character is perfect, every personal promise found in Scripture rests on an unshakeable foundation.


How Personal Promises Are Secured Today

• Centered in Christ—“All the promises of God are ‘Yes’ in Christ” (2 Corinthians 1:20).

• Guaranteed by covenant blood—Christ’s sacrifice forever sealed God’s word to His people.

• Confirmed by the Spirit—The Holy Spirit “testifies” within believers that God’s commitments will stand (Romans 8:16).

• Proven by history—“Not one of all the LORD’s good promises… had failed” (Joshua 21:45).


Living Out Trust Daily

• Hold fast—“Let us hold resolutely to the hope we confess, for He who promised is faithful” (Hebrews 10:23).

• Feed on His Word—personal promises emerge clearly when Scripture saturates the heart.

• Obey promptly—faith expresses itself through obedience, just as Abraham named Isaac exactly as instructed.

• Wait patiently—God’s timing perfects faith; delay never equals denial.

• Celebrate early—thanksgiving before fulfillment mirrors Abraham’s worship (Romans 4:20-21).


Encouraging Snapshots from Scripture

• Joseph kept trusting through betrayal and prison until God exalted him (Genesis 50:20).

• Israel saw walls fall when they marched around Jericho by faith (Joshua 6:20).

• Hannah received Samuel after pouring out her heart to the LORD (1 Samuel 1:19-20).

• Simeon held the infant Messiah, “according to Your word” (Luke 2:29-30).

• The church witnessed Pentecost power just as Christ promised (Acts 1:4; 2:1-4).


Putting It All Together

• God’s unchanging character, Christ’s finished work, and the Spirit’s inner witness combine to make every divine promise utterly reliable.

• Just as Sarah embraced laughter after years of waiting, believers today can rest, act, and rejoice, fully assured that God will attend to them “as He had said.”

How does Genesis 21:1 connect to God's covenant with Abraham in Genesis 17?
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