Jesus needed the disciples to understand that they must not allow their hearts to be troubled (Jn.14:27) because, although they would be facing the world, its issues and needs without His physical presence and although they were launching into a lifestyle of ministering and facing opposition, they could not let their hearts be troubled. They were prepared and they would now be the ones who were 1.) dealing directly with religious opposition in all forms, 2.) dealing directly with devils in all forms and 3.) dealing directly with the great weight of human need. They would no longer be standing behind Him observing, listening as He authoritatively dealt with each person and each situation with acts of power. THEY are now the ones who will be speaking authoritatively and performing acts of power for, if they don’t, troubles will go uncontradicted and needs will continue unmet and unabated. Therefore, it is no wonder that their hearts were troubled, distressed, agitated. Therefore, it is now that they must realize there is no need for troubled hearts because “lo, I am with you always, even to the end of the age”. (Matt.28:20) Now is the time to let assurance of His presence and promises arise.
“Make disciples” (Mt.28:91-20) does not mean: teach others to be dependent upon receiving blessings. Rather, it means to teach others to BE a blessing (like Jesus). The teaching, experiences and writings of the apostles matured, developed and equipped believers to be agency through which the Kingdom would be evidenced in this earth (Acts8:12;14:22; 19:8; 28:23,31;1Co4:20).