J. Sidlow Baxter said this quote

“ Lo, I am with you always, even unto the end of the age.”Note the “I Am.” In the Greek it is the strongest possible form of expression – Ego Eimi. Both ego and eimi mean “I am” but the former puts the emphasis on the “I” while the latter puts it on the “am.” Taken together they are the strongest Greek form to express the name of God as the great “I AM.” That is how the risen Christ here refers to Himself. “Lo, I AM with you!” But there is a lovely feature in the Greek construction here which does not reveal itself in our English translation. It reads like this:“And lo, I with you AM…”You and I dear fellow believer, are in between the “I” and the “AM.” He is not only with us, He is all around us. Not only now and then, but “always” which literally translated is, “all the days” … this day, this hour, this moment. Why, when we reflect on it, were not our Lord’s sudden appearings & disappearings during the 40 days between His resurrection and His ascension meant to teach those early disciples (and ourselves) this very thing, that even when He is invisible He is none the less present, hearing, watching, knowing, sympathizing, overruling? Let us never forget that the special promise of His presence is given in connection with our going forth as winners of others to Him. ”