Romans 4:21

full certified that what he had promised, that he was able to make good.

Genesis 18:14

Is the thing too hard for the LORD to do? In the time appointed will I return unto thee, as soon as the fruit can have life. And Sara shall have a son."

Hebrews 11:19

For he considered that God was able to raise up again from death. Wherefore received he him, for an example of the resurrection.

2 Timothy 1:12

for the which cause I also suffer these things. Nevertheless, I am not ashamed. For I know whom I have believed, and am sure that he is able keep that which I have committed to his keeping against that day.

Psalm 115:3

As for our God, he is in heaven; he doth whatsoever it pleaseth him.

Jeremiah 32:17

'O LORD God: It is thou that hast made heaven and earth with thy great power and high arm, and there is nothing too hard for thee.

Jeremiah 32:27

'Behold, I am the LORD God of all flesh, is there anything then too hard for me?'

Matthew 19:26

Jesus beheld them, and said unto them, "With men this is impossible, but with God all things are possible."

Luke 1:37

for with God can nothing be impossible."

Luke 1:45

And blessed art thou that believedst: For those things shall be performed which were told thee from the Lord."

Romans 8:38

Yea and I am sure that neither death, neither life, neither angels; nor rule, neither power, neither things present, neither things to come,

Romans 14:4

What art thou that judgest another man's servant? Whether he stand or fall, that pertaineth unto his master. Yea, he shall stand. For God is able to make him stand.

2 Corinthians 9:8

God is able to make you rich in all grace, that ye in all things having sufficient unto the utmost, may be rich unto all manner good works,

Hebrews 11:13

And they all died in faith, and received not the promises: but saw them afar off, and believed them, and saluted them: and confessed that they were strangers and pilgrims on the earth.

Treasury of Scripture Knowledge

Summary

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

General references

Bible References

Fully

Romans 8:38
Yea and I am sure that neither death, neither life, neither angels; nor rule, neither power, neither things present, neither things to come,
2 Timothy 1:12
for the which cause I also suffer these things. Nevertheless, I am not ashamed. For I know whom I have believed, and am sure that he is able keep that which I have committed to his keeping against that day.
Hebrews 11:13
And they all died in faith, and received not the promises: but saw them afar off, and believed them, and saluted them: and confessed that they were strangers and pilgrims on the earth.

He was able

Romans 14:4
What art thou that judgest another man's servant? Whether he stand or fall, that pertaineth unto his master. Yea, he shall stand. For God is able to make him stand.
Genesis 18:14
Is the thing too hard for the LORD to do? In the time appointed will I return unto thee, as soon as the fruit can have life. And Sara shall have a son."
Psalm 115:3
As for our God, he is in heaven; he doth whatsoever it pleaseth him.
Jeremiah 32:17
'O LORD God: It is thou that hast made heaven and earth with thy great power and high arm, and there is nothing too hard for thee.
Matthew 19:26
Jesus beheld them, and said unto them, "With men this is impossible, but with God all things are possible."
Luke 1:37
for with God can nothing be impossible."
2 Corinthians 9:8
God is able to make you rich in all grace, that ye in all things having sufficient unto the utmost, may be rich unto all manner good works,
Hebrews 11:19
For he considered that God was able to raise up again from death. Wherefore received he him, for an example of the resurrection.

General references

Psalm 22:4
Our fathers hoped in thee; they trusted in thee, and thou didst deliver them.