"Mindful"
And truly, if they had been mindful {G3421} of that country from whence they came out, they might have had opportunity to have returned.
Hebrews 11:15
Strongs: G3421
3421 μνημονεύω [MNHMONEU/W] {mnēmoneúō} \mnay-mon-yoo'-o\
from a derivative of 3420; to exercise memory, i.e. recollect; by implication, to punish; also to rehearse:--make mention; be mindful, remember.
Matthew 16:9 Do ye not yet understand, neither remember {G3421} the five loaves of the five thousand, and how many baskets ye took up?
Mark 8:18 Having eyes, see ye not? and having ears, hear ye not? and do ye {G3421} not remember {G3421}?
Luke 17:32 Remember {G3421} Lot's wife.
John 15:20 Remember {G3421} the word that I said unto you, The servant is not greater than his lord. If they have persecuted me, they will also persecute you; if they have kept my saying, they will keep yours also.
John 16:4 But these things have I told you, that when the time shall come, ye may remember {G3421} that I told you of them. And these things I said not unto you at the beginning, because I was with you.
John 16:21 A woman when she is in travail hath sorrow, because her hour is come: but as soon as she is delivered of the child, she remembereth {G3421} no more the anguish, for joy that a man is born into the world.
Acts 20:31 Therefore watch, and remember {G3421}, that by the space of three years I ceased not to warn every one night and day with tears.
Acts 20:35 I have shewed you all things, how that so labouring ye ought to support the weak, and to remember {G3421} the words of the Lord Jesus, how he said, It is more blessed to give than to receive.
Galatians 2:10 Only they would that we should remember {G3421} the poor; the same which I also was forward to do.
Ephesians 2:11-13 ¶Wherefore remember {G3421}, that ye being in time past Gentiles in the flesh, who are called Uncircumcision by that which is called the Circumcision in the flesh made by hands that at that time ye were without Christ, being aliens from the commonwealth of Israel, and strangers from the covenants of promise, having no hope, and without God in the world: but now in Christ Jesus ye who sometimes were far off are made nigh by the blood of Christ.
I Thessalonians 1:2-4 We give thanks to God always for you all, making mention of you in our prayers; remembering {G3421} without ceasing your work of faith, and labour of love, and patience of hope in our Lord Jesus Christ, in the sight of God and our Father; knowing, brethren beloved, your election of God.
I Thessalonians 2:9 For ye remember {G3421}, brethren, our labour and travail: for labouring night and day, because we would not be chargeable unto any of you, we preached unto you the gospel of God.
II Thessalonians 2:5 Remember ye {G3421} not, that, when I was yet with you, I told you these things?
II Timothy 2:8,9 Remember {G3421} that Jesus Christ of the seed of David was raised from the dead according to my gospel: wherein I suffer trouble, as an evil doer, even unto bonds; but the word of God is not bound.
Hebrews 11:15 And truly, if they had been mindful {G3421} of that country from whence they came out, they might have had opportunity to have returned.
Hebrews 11:22 By faith Joseph, when he died, made mention {G3421} of the departing of the children of Israel; and gave commandment concerning his bones.
Hebrews 13:7,8 ¶Remember {G3421} them which have the rule over you, who have spoken unto you the word of God: whose faith follow, considering the end of their conversation. Jesus Christ the same yesterday, and to day, and for ever.
Revelation 2:5 Remember {G3421} therefore from whence thou art fallen, and repent, and do the first works; or else I will come unto thee quickly, and will remove thy candlestick out of his place, except thou repent.
Revelation 3:3 Remember {G3421} therefore how thou hast received and heard, and hold fast, and repent. If therefore thou shalt not watch, I will come on thee as a thief, and thou shalt not know what hour I will come upon thee.
Revelation 18:5 For her ["Babylon" 18:2] sins have reached unto heaven, and God hath remembered {G3421} her iniquities.
AGAIN
And truly, if they had been mindful {G3421} of that country from whence they came out, they might have had opportunity to have returned.
Hebrews 11:15
Here is some immediate context
Hebrews 11:1-16
Now faith is the substance of things hoped for, the evidence of things not seen. For by it the elders obtained a good report. Through faith we understand that the worlds were framed by the word of God, so that things which are seen were not made of things which do appear. By faith Abel offered unto God a more excellent sacrifice than Cain, by which he obtained witness that he was righteous, God testifying of his gifts: and by it he being dead yet speaketh. By faith Enoch was translated that he should not see death; and was not found, because God had translated him: for before his translation he had this testimony, that he pleased God. But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him. By faith Noah, being warned of God of things not seen as yet, moved with fear, prepared an ark to the saving of his house; by the which he condemned the world, and became heir of the righteousness which is by faith. By faith Abraham, when he was called to go out into a place which he should after receive for an inheritance, obeyed; and he went out, not knowing whither he went. By faith he sojourned in the land of promise, as in a strange country, dwelling in tabernacles with Isaac and Jacob, the heirs with him of the same promise: for he looked for a city which hath foundations, whose builder and maker is God. Through faith also Sara herself received strength to conceive seed, and was delivered of a child when she was past age, because she judged him faithful who had promised. Therefore sprang there even of one, and him as good as dead, so many as the stars of the sky in multitude, and as the sand which is by the sea shore innumerable. These all died in faith, not having received the promises, but having seen them afar off, and were persuaded of them, and embraced them, and confessed that they were strangers and pilgrims on the earth. For they that say such things declare plainly that they seek a country. And truly, if they had been mindful {G3421} of that country from whence they came out, they might have had opportunity to have returned. But now they desire a better country, that is, an heavenly: wherefore God is not ashamed to be called their God: for he hath prepared for them a city.
AGAIN
And truly, if they had been mindful {G3421} of that country from whence they came out, they might have had opportunity to have returned.
Hebrews 11:15
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Romans 5:1,2 Therefore being justified by faith, we have peace with God through our Lord Jesus Christ: by Whom also we have access by faith into this grace wherein we stand, and rejoice in hope of the glory of God.
Romans 16:27 To God only wise, be glory through Jesus Christ for ever. Amen.
I Peter 5:11 To Him be glory and dominion for ever and ever. Amen.