Romans 4:21

and being fully persuaded that what he had promised he was able also to perform.

Hebrews 11:19

for he concluded that God was able to raise him up, even from the dead; wherefore he received him even in like manner.

2 Timothy 1:12

for which cause I also suffer these things; yet I am not ashamed: for I know whom I have believed, and I am persuaded that he is able to keep that which I have intrusted to him till that day.

Matthew 19:26

But Jesus looked on them, and said to them: "With men, this is impossible; but with God, all things are possible.

Luke 1:37

for nothing shall be impossible with God.

Luke 1:45

And blessed is she who believed; for there shall be a fulfillment of the things which were spoken to her from the Lord.

Romans 8:38

For I am persuaded that neither death, nor life, nor angels, nor principalities, nor powers, nor things present, nor things to come,

Romans 14:4

Who are you that judge another man's servant? To his own master he stands or falls; indeed, he shall stand, for God is able to make him stand.

2 Corinthians 9:8

And God is able to confer every gift upon you abundantly, that you, always having all sufficiency in every thing, may have enough for every good work;

Hebrews 11:13

All these died in faith, not having received the promises, but having seen them afar off. and having embraced them and confessed that they were strangers and sojourners in the land.

Treasury of Scripture Knowledge

Summary

And being fully persuaded that, what he had promised, he was able also to perform.

Bible References

Fully

Romans 8:38
For I am persuaded that neither death, nor life, nor angels, nor principalities, nor powers, nor things present, nor things to come,
2 Timothy 1:12
for which cause I also suffer these things; yet I am not ashamed: for I know whom I have believed, and I am persuaded that he is able to keep that which I have intrusted to him till that day.
Hebrews 11:13
All these died in faith, not having received the promises, but having seen them afar off. and having embraced them and confessed that they were strangers and sojourners in the land.

He was able

Romans 14:4
Who are you that judge another man's servant? To his own master he stands or falls; indeed, he shall stand, for God is able to make him stand.
Matthew 19:26
But Jesus looked on them, and said to them: "With men, this is impossible; but with God, all things are possible.
Luke 1:37
for nothing shall be impossible with God.
2 Corinthians 9:8
And God is able to confer every gift upon you abundantly, that you, always having all sufficiency in every thing, may have enough for every good work;
Hebrews 11:19
for he concluded that God was able to raise him up, even from the dead; wherefore he received him even in like manner.